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Finding the Fourth Proportional to 12,167.70, 18,240.21 and 5,599.14

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Solution

The fourth proportional to 12,167.70, 18,240.21 and 5,599.14 is: 8,393.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.70 : 18,240.21 = 5,599.14 : x
  2. Step 2: Convert to fraction form
    12,167.70/18,240.21 = 5,599.14/x
  3. Step 3: Cross multiply
    12,167.70x = 18,240.21 × 5,599.14
  4. Step 4: Simplify right side
    12,167.70x = 102,129,489.42
  5. Step 5: Solve for x
    x = 102,129,489.42/12,167.70
  6. Step 6: Final answer
    x = 8,393.49

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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.