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Finding the Fourth Proportional to 8,601.50, 12,902.25 and 5,679.13

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Solution

The fourth proportional to 8,601.50, 12,902.25 and 5,679.13 is: 8,518.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,601.50 : 12,902.25 = 5,679.13 : x
  2. Step 2: Convert to fraction form
    8,601.50/12,902.25 = 5,679.13/x
  3. Step 3: Cross multiply
    8,601.50x = 12,902.25 × 5,679.13
  4. Step 4: Simplify right side
    8,601.50x = 73,273,555.04
  5. Step 5: Solve for x
    x = 73,273,555.04/8,601.50
  6. Step 6: Final answer
    x = 8,518.70

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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.