Home / 8,928.69-12,311.13-7,244.83

Finding the Fourth Proportional to 8,928.69, 12,311.13 and 7,244.83

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Solution

The fourth proportional to 8,928.69, 12,311.13 and 7,244.83 is: 9,989.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.69 : 12,311.13 = 7,244.83 : x
  2. Step 2: Convert to fraction form
    8,928.69/12,311.13 = 7,244.83/x
  3. Step 3: Cross multiply
    8,928.69x = 12,311.13 × 7,244.83
  4. Step 4: Simplify right side
    8,928.69x = 89,192,043.96
  5. Step 5: Solve for x
    x = 89,192,043.96/8,928.69
  6. Step 6: Final answer
    x = 9,989.38

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.