Home / 8,711.47-13,070.72-3,517.75

Finding the Fourth Proportional to 8,711.47, 13,070.72 and 3,517.75

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Solution

The fourth proportional to 8,711.47, 13,070.72 and 3,517.75 is: 5,278.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.47 : 13,070.72 = 3,517.75 : x
  2. Step 2: Convert to fraction form
    8,711.47/13,070.72 = 3,517.75/x
  3. Step 3: Cross multiply
    8,711.47x = 13,070.72 × 3,517.75
  4. Step 4: Simplify right side
    8,711.47x = 45,979,525.28
  5. Step 5: Solve for x
    x = 45,979,525.28/8,711.47
  6. Step 6: Final answer
    x = 5,278.04

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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.