Home / 9,086.25-12,540.75-5,107.36

Finding the Fourth Proportional to 9,086.25, 12,540.75 and 5,107.36

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Solution

The fourth proportional to 9,086.25, 12,540.75 and 5,107.36 is: 7,049.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,086.25 : 12,540.75 = 5,107.36 : x
  2. Step 2: Convert to fraction form
    9,086.25/12,540.75 = 5,107.36/x
  3. Step 3: Cross multiply
    9,086.25x = 12,540.75 × 5,107.36
  4. Step 4: Simplify right side
    9,086.25x = 64,050,124.92
  5. Step 5: Solve for x
    x = 64,050,124.92/9,086.25
  6. Step 6: Final answer
    x = 7,049.13

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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.