Home / 8,233.92-11,378.40-7,197.12

Finding the Fourth Proportional to 8,233.92, 11,378.40 and 7,197.12

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Solution

The fourth proportional to 8,233.92, 11,378.40 and 7,197.12 is: 9,945.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,233.92 : 11,378.40 = 7,197.12 : x
  2. Step 2: Convert to fraction form
    8,233.92/11,378.40 = 7,197.12/x
  3. Step 3: Cross multiply
    8,233.92x = 11,378.40 × 7,197.12
  4. Step 4: Simplify right side
    8,233.92x = 81,891,710.21
  5. Step 5: Solve for x
    x = 81,891,710.21/8,233.92
  6. Step 6: Final answer
    x = 9,945.65

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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.