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Finding the Fourth Proportional to 18,344.98, 27,531.24 and 8,491.15

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Solution

The fourth proportional to 18,344.98, 27,531.24 and 8,491.15 is: 12,743.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,344.98 : 27,531.24 = 8,491.15 : x
  2. Step 2: Convert to fraction form
    18,344.98/27,531.24 = 8,491.15/x
  3. Step 3: Cross multiply
    18,344.98x = 27,531.24 × 8,491.15
  4. Step 4: Simplify right side
    18,344.98x = 233,771,888.53
  5. Step 5: Solve for x
    x = 233,771,888.53/18,344.98
  6. Step 6: Final answer
    x = 12,743.10

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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.