Home / 8,207.13-11,330.52-5,420.73

Finding the Fourth Proportional to 8,207.13, 11,330.52 and 5,420.73

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Solution

The fourth proportional to 8,207.13, 11,330.52 and 5,420.73 is: 7,483.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207.13 : 11,330.52 = 5,420.73 : x
  2. Step 2: Convert to fraction form
    8,207.13/11,330.52 = 5,420.73/x
  3. Step 3: Cross multiply
    8,207.13x = 11,330.52 × 5,420.73
  4. Step 4: Simplify right side
    8,207.13x = 61,419,689.68
  5. Step 5: Solve for x
    x = 61,419,689.68/8,207.13
  6. Step 6: Final answer
    x = 7,483.70

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Double scale
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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.