Home / 9,119.11-13,680.56-3,854.12

Finding the Fourth Proportional to 9,119.11, 13,680.56 and 3,854.12

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Solution

The fourth proportional to 9,119.11, 13,680.56 and 3,854.12 is: 5,781.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.11 : 13,680.56 = 3,854.12 : x
  2. Step 2: Convert to fraction form
    9,119.11/13,680.56 = 3,854.12/x
  3. Step 3: Cross multiply
    9,119.11x = 13,680.56 × 3,854.12
  4. Step 4: Simplify right side
    9,119.11x = 52,726,500.64
  5. Step 5: Solve for x
    x = 52,726,500.64/9,119.11
  6. Step 6: Final answer
    x = 5,781.98

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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.