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Finding the Fourth Proportional to 8,862.15, 13,284.08 and 3,934.11

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Solution

The fourth proportional to 8,862.15, 13,284.08 and 3,934.11 is: 5,897.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.15 : 13,284.08 = 3,934.11 : x
  2. Step 2: Convert to fraction form
    8,862.15/13,284.08 = 3,934.11/x
  3. Step 3: Cross multiply
    8,862.15x = 13,284.08 × 3,934.11
  4. Step 4: Simplify right side
    8,862.15x = 52,260,975.38
  5. Step 5: Solve for x
    x = 52,260,975.38/8,862.15
  6. Step 6: Final answer
    x = 5,897.10

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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.