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Finding the Fourth Proportional to 8,862.55, 13,293.12 and 3,864.80

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Solution

The fourth proportional to 8,862.55, 13,293.12 and 3,864.80 is: 5,796.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.55 : 13,293.12 = 3,864.80 : x
  2. Step 2: Convert to fraction form
    8,862.55/13,293.12 = 3,864.80/x
  3. Step 3: Cross multiply
    8,862.55x = 13,293.12 × 3,864.80
  4. Step 4: Simplify right side
    8,862.55x = 51,375,250.18
  5. Step 5: Solve for x
    x = 51,375,250.18/8,862.55
  6. Step 6: Final answer
    x = 5,796.89

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1.5x scale

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.