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Finding the Fourth Proportional to 18,361, 25,344.18 and 10,807.24

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Solution

The fourth proportional to 18,361, 25,344.18 and 10,807.24 is: 14,917.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,361 : 25,344.18 = 10,807.24 : x
  2. Step 2: Convert to fraction form
    18,361/25,344.18 = 10,807.24/x
  3. Step 3: Cross multiply
    18,361x = 25,344.18 × 10,807.24
  4. Step 4: Simplify right side
    18,361x = 273,900,635.86
  5. Step 5: Solve for x
    x = 273,900,635.86/18,361
  6. Step 6: Final answer
    x = 14,917.52

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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.