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Finding the Fourth Proportional to 18,235.80, 27,355.86 and 6,545.88

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Solution

The fourth proportional to 18,235.80, 27,355.86 and 6,545.88 is: 9,819.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,235.80 : 27,355.86 = 6,545.88 : x
  2. Step 2: Convert to fraction form
    18,235.80/27,355.86 = 6,545.88/x
  3. Step 3: Cross multiply
    18,235.80x = 27,355.86 × 6,545.88
  4. Step 4: Simplify right side
    18,235.80x = 179,068,176.86
  5. Step 5: Solve for x
    x = 179,068,176.86/18,235.80
  6. Step 6: Final answer
    x = 9,819.60

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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.