Home / 12,715.26-17,545.38-7,337.88

Finding the Fourth Proportional to 12,715.26, 17,545.38 and 7,337.88

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Solution

The fourth proportional to 12,715.26, 17,545.38 and 7,337.88 is: 10,125.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,715.26 : 17,545.38 = 7,337.88 : x
  2. Step 2: Convert to fraction form
    12,715.26/17,545.38 = 7,337.88/x
  3. Step 3: Cross multiply
    12,715.26x = 17,545.38 × 7,337.88
  4. Step 4: Simplify right side
    12,715.26x = 128,745,892.99
  5. Step 5: Solve for x
    x = 128,745,892.99/12,715.26
  6. Step 6: Final answer
    x = 10,125.31

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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.