Home / 8,438.08-12,657.12-3,245.17

Finding the Fourth Proportional to 8,438.08, 12,657.12 and 3,245.17

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Solution

The fourth proportional to 8,438.08, 12,657.12 and 3,245.17 is: 4,867.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,438.08 : 12,657.12 = 3,245.17 : x
  2. Step 2: Convert to fraction form
    8,438.08/12,657.12 = 3,245.17/x
  3. Step 3: Cross multiply
    8,438.08x = 12,657.12 × 3,245.17
  4. Step 4: Simplify right side
    8,438.08x = 41,074,506.11
  5. Step 5: Solve for x
    x = 41,074,506.11/8,438.08
  6. Step 6: Final answer
    x = 4,867.76

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Half scale
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Double scale
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Similar ratio
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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.