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Finding the Fourth Proportional to 18,182.80, 27,269.88 and 12,337.84

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Solution

The fourth proportional to 18,182.80, 27,269.88 and 12,337.84 is: 18,503.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,182.80 : 27,269.88 = 12,337.84 : x
  2. Step 2: Convert to fraction form
    18,182.80/27,269.88 = 12,337.84/x
  3. Step 3: Cross multiply
    18,182.80x = 27,269.88 × 12,337.84
  4. Step 4: Simplify right side
    18,182.80x = 336,451,416.26
  5. Step 5: Solve for x
    x = 336,451,416.26/18,182.80
  6. Step 6: Final answer
    x = 18,503.83

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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.