Home / 15,131.20-22,703.28-5,265.10

Finding the Fourth Proportional to 15,131.20, 22,703.28 and 5,265.10

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Solution

The fourth proportional to 15,131.20, 22,703.28 and 5,265.10 is: 7,899.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,131.20 : 22,703.28 = 5,265.10 : x
  2. Step 2: Convert to fraction form
    15,131.20/22,703.28 = 5,265.10/x
  3. Step 3: Cross multiply
    15,131.20x = 22,703.28 × 5,265.10
  4. Step 4: Simplify right side
    15,131.20x = 119,535,039.53
  5. Step 5: Solve for x
    x = 119,535,039.53/15,131.20
  6. Step 6: Final answer
    x = 7,899.90

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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.