The formula is to make investments of $4,000, $3,000, and $3,000 in relatively low-risk dividend ETFs. Since we're choosing funds that are already diversified, we can diversify even further with allocations into three different ETFs. A sensible plan that could turn your $10,000 portfolio into an income-generating juggernaut.
Faster growth is commensurate with greater volatility and higher risk, so if starting later in the game, long-term, faster growth may call for a mix of fast growth with slower and more stable investments to balance out the portfolio risk profile.