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Finding the Fourth Proportional to 18,337.55, 27,488.10 and 8,459.60

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Solution

The fourth proportional to 18,337.55, 27,488.10 and 8,459.60 is: 12,680.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,337.55 : 27,488.10 = 8,459.60 : x
  2. Step 2: Convert to fraction form
    18,337.55/27,488.10 = 8,459.60/x
  3. Step 3: Cross multiply
    18,337.55x = 27,488.10 × 8,459.60
  4. Step 4: Simplify right side
    18,337.55x = 232,538,330.76
  5. Step 5: Solve for x
    x = 232,538,330.76/18,337.55
  6. Step 6: Final answer
    x = 12,680.99

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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.