Home / 18,489.30-27,732.12-10,166.55

Finding the Fourth Proportional to 18,489.30, 27,732.12 and 10,166.55

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Solution

The fourth proportional to 18,489.30, 27,732.12 and 10,166.55 is: 15,248.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,489.30 : 27,732.12 = 10,166.55 : x
  2. Step 2: Convert to fraction form
    18,489.30/27,732.12 = 10,166.55/x
  3. Step 3: Cross multiply
    18,489.30x = 27,732.12 × 10,166.55
  4. Step 4: Simplify right side
    18,489.30x = 281,939,984.59
  5. Step 5: Solve for x
    x = 281,939,984.59/18,489.30
  6. Step 6: Final answer
    x = 15,248.82

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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.