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Finding the Fourth Proportional to 15,070.40, 22,600.20 and 7,672.40

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Solution

The fourth proportional to 15,070.40, 22,600.20 and 7,672.40 is: 11,505.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,070.40 : 22,600.20 = 7,672.40 : x
  2. Step 2: Convert to fraction form
    15,070.40/22,600.20 = 7,672.40/x
  3. Step 3: Cross multiply
    15,070.40x = 22,600.20 × 7,672.40
  4. Step 4: Simplify right side
    15,070.40x = 173,397,774.48
  5. Step 5: Solve for x
    x = 173,397,774.48/15,070.40
  6. Step 6: Final answer
    x = 11,505.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.