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Finding the Fourth Proportional to 8,854.68, 13,273.80 and 3,921.68

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Solution

The fourth proportional to 8,854.68, 13,273.80 and 3,921.68 is: 5,878.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,854.68 : 13,273.80 = 3,921.68 : x
  2. Step 2: Convert to fraction form
    8,854.68/13,273.80 = 3,921.68/x
  3. Step 3: Cross multiply
    8,854.68x = 13,273.80 × 3,921.68
  4. Step 4: Simplify right side
    8,854.68x = 52,055,595.98
  5. Step 5: Solve for x
    x = 52,055,595.98/8,854.68
  6. Step 6: Final answer
    x = 5,878.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.