Home / 18,551.38-27,766.86-13,619.92

Finding the Fourth Proportional to 18,551.38, 27,766.86 and 13,619.92

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Solution

The fourth proportional to 18,551.38, 27,766.86 and 13,619.92 is: 20,385.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,551.38 : 27,766.86 = 13,619.92 : x
  2. Step 2: Convert to fraction form
    18,551.38/27,766.86 = 13,619.92/x
  3. Step 3: Cross multiply
    18,551.38x = 27,766.86 × 13,619.92
  4. Step 4: Simplify right side
    18,551.38x = 378,182,411.85
  5. Step 5: Solve for x
    x = 378,182,411.85/18,551.38
  6. Step 6: Final answer
    x = 20,385.68

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1.5x scale

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.