Home / 15,143.38-22,715.98-4,755.13

Finding the Fourth Proportional to 15,143.38, 22,715.98 and 4,755.13

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Solution

The fourth proportional to 15,143.38, 22,715.98 and 4,755.13 is: 7,132.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,143.38 : 22,715.98 = 4,755.13 : x
  2. Step 2: Convert to fraction form
    15,143.38/22,715.98 = 4,755.13/x
  3. Step 3: Cross multiply
    15,143.38x = 22,715.98 × 4,755.13
  4. Step 4: Simplify right side
    15,143.38x = 108,017,300.62
  5. Step 5: Solve for x
    x = 108,017,300.62/15,143.38
  6. Step 6: Final answer
    x = 7,132.97

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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.