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Finding the Fourth Proportional to 18,061.12, 27,094.88 and 6,381.12

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Solution

The fourth proportional to 18,061.12, 27,094.88 and 6,381.12 is: 9,572.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,061.12 : 27,094.88 = 6,381.12 : x
  2. Step 2: Convert to fraction form
    18,061.12/27,094.88 = 6,381.12/x
  3. Step 3: Cross multiply
    18,061.12x = 27,094.88 × 6,381.12
  4. Step 4: Simplify right side
    18,061.12x = 172,895,680.67
  5. Step 5: Solve for x
    x = 172,895,680.67/18,061.12
  6. Step 6: Final answer
    x = 9,572.81

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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.