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Finding the Fourth Proportional to 8,356.68, 12,527.66 and 3,159.88

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Solution

The fourth proportional to 8,356.68, 12,527.66 and 3,159.88 is: 4,737.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,356.68 : 12,527.66 = 3,159.88 : x
  2. Step 2: Convert to fraction form
    8,356.68/12,527.66 = 3,159.88/x
  3. Step 3: Cross multiply
    8,356.68x = 12,527.66 × 3,159.88
  4. Step 4: Simplify right side
    8,356.68x = 39,585,902.28
  5. Step 5: Solve for x
    x = 39,585,902.28/8,356.68
  6. Step 6: Final answer
    x = 4,737.04

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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.