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Finding the Fourth Proportional to 13,324.52, 18,387.93 and 7,356.38

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Solution

The fourth proportional to 13,324.52, 18,387.93 and 7,356.38 is: 10,151.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324.52 : 18,387.93 = 7,356.38 : x
  2. Step 2: Convert to fraction form
    13,324.52/18,387.93 = 7,356.38/x
  3. Step 3: Cross multiply
    13,324.52x = 18,387.93 × 7,356.38
  4. Step 4: Simplify right side
    13,324.52x = 135,268,508.55
  5. Step 5: Solve for x
    x = 135,268,508.55/13,324.52
  6. Step 6: Final answer
    x = 10,151.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.