Home / 15,002.45-22,489.76-5,139.38

Finding the Fourth Proportional to 15,002.45, 22,489.76 and 5,139.38

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Solution

The fourth proportional to 15,002.45, 22,489.76 and 5,139.38 is: 7,704.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,002.45 : 22,489.76 = 5,139.38 : x
  2. Step 2: Convert to fraction form
    15,002.45/22,489.76 = 5,139.38/x
  3. Step 3: Cross multiply
    15,002.45x = 22,489.76 × 5,139.38
  4. Step 4: Simplify right side
    15,002.45x = 115,583,491.82
  5. Step 5: Solve for x
    x = 115,583,491.82/15,002.45
  6. Step 6: Final answer
    x = 7,704.31

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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.