Home / 15,819.50-21,833.12-9,104.96

Finding the Fourth Proportional to 15,819.50, 21,833.12 and 9,104.96

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Solution

The fourth proportional to 15,819.50, 21,833.12 and 9,104.96 is: 12,566.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,819.50 : 21,833.12 = 9,104.96 : x
  2. Step 2: Convert to fraction form
    15,819.50/21,833.12 = 9,104.96/x
  3. Step 3: Cross multiply
    15,819.50x = 21,833.12 × 9,104.96
  4. Step 4: Simplify right side
    15,819.50x = 198,789,761.62
  5. Step 5: Solve for x
    x = 198,789,761.62/15,819.50
  6. Step 6: Final answer
    x = 12,566.12

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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.