Home / 15,566.31-21,481.20-8,492.85

Finding the Fourth Proportional to 15,566.31, 21,481.20 and 8,492.85

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Solution

The fourth proportional to 15,566.31, 21,481.20 and 8,492.85 is: 11,719.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,566.31 : 21,481.20 = 8,492.85 : x
  2. Step 2: Convert to fraction form
    15,566.31/21,481.20 = 8,492.85/x
  3. Step 3: Cross multiply
    15,566.31x = 21,481.20 × 8,492.85
  4. Step 4: Simplify right side
    15,566.31x = 182,436,609.42
  5. Step 5: Solve for x
    x = 182,436,609.42/15,566.31
  6. Step 6: Final answer
    x = 11,719.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.