Home / 15,987.68-22,060.42-9,612.75

Finding the Fourth Proportional to 15,987.68, 22,060.42 and 9,612.75

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Solution

The fourth proportional to 15,987.68, 22,060.42 and 9,612.75 is: 13,264.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987.68 : 22,060.42 = 9,612.75 : x
  2. Step 2: Convert to fraction form
    15,987.68/22,060.42 = 9,612.75/x
  3. Step 3: Cross multiply
    15,987.68x = 22,060.42 × 9,612.75
  4. Step 4: Simplify right side
    15,987.68x = 212,061,279.90
  5. Step 5: Solve for x
    x = 212,061,279.90/15,987.68
  6. Step 6: Final answer
    x = 13,264.04

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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.