Home / 9,051.39-12,487.70-7,163.28

Finding the Fourth Proportional to 9,051.39, 12,487.70 and 7,163.28

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Solution

The fourth proportional to 9,051.39, 12,487.70 and 7,163.28 is: 9,882.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,051.39 : 12,487.70 = 7,163.28 : x
  2. Step 2: Convert to fraction form
    9,051.39/12,487.70 = 7,163.28/x
  3. Step 3: Cross multiply
    9,051.39x = 12,487.70 × 7,163.28
  4. Step 4: Simplify right side
    9,051.39x = 89,452,909.56
  5. Step 5: Solve for x
    x = 89,452,909.56/9,051.39
  6. Step 6: Final answer
    x = 9,882.78

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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.