Home / 18,177.13-27,280.41-9,414.55

Finding the Fourth Proportional to 18,177.13, 27,280.41 and 9,414.55

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Solution

The fourth proportional to 18,177.13, 27,280.41 and 9,414.55 is: 14,129.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,177.13 : 27,280.41 = 9,414.55 : x
  2. Step 2: Convert to fraction form
    18,177.13/27,280.41 = 9,414.55/x
  3. Step 3: Cross multiply
    18,177.13x = 27,280.41 × 9,414.55
  4. Step 4: Simplify right side
    18,177.13x = 256,832,783.97
  5. Step 5: Solve for x
    x = 256,832,783.97/18,177.13
  6. Step 6: Final answer
    x = 14,129.45

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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.