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Finding the Fourth Proportional to 8,870, 13,306.08 and 3,025.28

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Solution

The fourth proportional to 8,870, 13,306.08 and 3,025.28 is: 4,538.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,870 : 13,306.08 = 3,025.28 : x
  2. Step 2: Convert to fraction form
    8,870/13,306.08 = 3,025.28/x
  3. Step 3: Cross multiply
    8,870x = 13,306.08 × 3,025.28
  4. Step 4: Simplify right side
    8,870x = 40,254,617.70
  5. Step 5: Solve for x
    x = 40,254,617.70/8,870
  6. Step 6: Final answer
    x = 4,538.29

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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.