Home / 8,901.20-12,286.19-5,364.63

Finding the Fourth Proportional to 8,901.20, 12,286.19 and 5,364.63

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Solution

The fourth proportional to 8,901.20, 12,286.19 and 5,364.63 is: 7,404.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.20 : 12,286.19 = 5,364.63 : x
  2. Step 2: Convert to fraction form
    8,901.20/12,286.19 = 5,364.63/x
  3. Step 3: Cross multiply
    8,901.20x = 12,286.19 × 5,364.63
  4. Step 4: Simplify right side
    8,901.20x = 65,910,863.46
  5. Step 5: Solve for x
    x = 65,910,863.46/8,901.20
  6. Step 6: Final answer
    x = 7,404.72

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Half scale
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Double scale
Find fourth proportional to 8,902.20, 12,287.57 and 5,365.63
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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.