Home / 18,235.91-27,331.02-9,781.53

Finding the Fourth Proportional to 18,235.91, 27,331.02 and 9,781.53

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Solution

The fourth proportional to 18,235.91, 27,331.02 and 9,781.53 is: 14,660.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,235.91 : 27,331.02 = 9,781.53 : x
  2. Step 2: Convert to fraction form
    18,235.91/27,331.02 = 9,781.53/x
  3. Step 3: Cross multiply
    18,235.91x = 27,331.02 × 9,781.53
  4. Step 4: Simplify right side
    18,235.91x = 267,339,192.06
  5. Step 5: Solve for x
    x = 267,339,192.06/18,235.91
  6. Step 6: Final answer
    x = 14,660.05

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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.