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Finding the Fourth Proportional to 15,602.50, 21,531.04 and 9,229.42

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Solution

The fourth proportional to 15,602.50, 21,531.04 and 9,229.42 is: 12,736.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,602.50 : 21,531.04 = 9,229.42 : x
  2. Step 2: Convert to fraction form
    15,602.50/21,531.04 = 9,229.42/x
  3. Step 3: Cross multiply
    15,602.50x = 21,531.04 × 9,229.42
  4. Step 4: Simplify right side
    15,602.50x = 198,719,011.20
  5. Step 5: Solve for x
    x = 198,719,011.20/15,602.50
  6. Step 6: Final answer
    x = 12,736.36

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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.