Home / 8,171.46-11,278.17-4,635

Finding the Fourth Proportional to 8,171.46, 11,278.17 and 4,635

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Solution

The fourth proportional to 8,171.46, 11,278.17 and 4,635 is: 6,397.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,171.46 : 11,278.17 = 4,635 : x
  2. Step 2: Convert to fraction form
    8,171.46/11,278.17 = 4,635/x
  3. Step 3: Cross multiply
    8,171.46x = 11,278.17 × 4,635
  4. Step 4: Simplify right side
    8,171.46x = 52,274,317.95
  5. Step 5: Solve for x
    x = 52,274,317.95/8,171.46
  6. Step 6: Final answer
    x = 6,397.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.