Home / 8,949.13-13,428-3,687.97

Finding the Fourth Proportional to 8,949.13, 13,428 and 3,687.97

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Solution

The fourth proportional to 8,949.13, 13,428 and 3,687.97 is: 5,533.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.13 : 13,428 = 3,687.97 : x
  2. Step 2: Convert to fraction form
    8,949.13/13,428 = 3,687.97/x
  3. Step 3: Cross multiply
    8,949.13x = 13,428 × 3,687.97
  4. Step 4: Simplify right side
    8,949.13x = 49,522,061.16
  5. Step 5: Solve for x
    x = 49,522,061.16/8,949.13
  6. Step 6: Final answer
    x = 5,533.73

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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.