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Finding the Fourth Proportional to 8,834.10, 13,251.15 and 3,901.20

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Solution

The fourth proportional to 8,834.10, 13,251.15 and 3,901.20 is: 5,851.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,834.10 : 13,251.15 = 3,901.20 : x
  2. Step 2: Convert to fraction form
    8,834.10/13,251.15 = 3,901.20/x
  3. Step 3: Cross multiply
    8,834.10x = 13,251.15 × 3,901.20
  4. Step 4: Simplify right side
    8,834.10x = 51,695,386.38
  5. Step 5: Solve for x
    x = 51,695,386.38/8,834.10
  6. Step 6: Final answer
    x = 5,851.80

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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.