Home / 8,686.14-11,982.60-5,327.88

Finding the Fourth Proportional to 8,686.14, 11,982.60 and 5,327.88

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Solution

The fourth proportional to 8,686.14, 11,982.60 and 5,327.88 is: 7,349.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686.14 : 11,982.60 = 5,327.88 : x
  2. Step 2: Convert to fraction form
    8,686.14/11,982.60 = 5,327.88/x
  3. Step 3: Cross multiply
    8,686.14x = 11,982.60 × 5,327.88
  4. Step 4: Simplify right side
    8,686.14x = 63,841,854.89
  5. Step 5: Solve for x
    x = 63,841,854.89/8,686.14
  6. Step 6: Final answer
    x = 7,349.85

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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.