Home / 15,129.70-22,689.15-5,269.30

Finding the Fourth Proportional to 15,129.70, 22,689.15 and 5,269.30

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Solution

The fourth proportional to 15,129.70, 22,689.15 and 5,269.30 is: 7,902.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,129.70 : 22,689.15 = 5,269.30 : x
  2. Step 2: Convert to fraction form
    15,129.70/22,689.15 = 5,269.30/x
  3. Step 3: Cross multiply
    15,129.70x = 22,689.15 × 5,269.30
  4. Step 4: Simplify right side
    15,129.70x = 119,555,938.10
  5. Step 5: Solve for x
    x = 119,555,938.10/15,129.70
  6. Step 6: Final answer
    x = 7,902.07

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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.