Home / 9,169.91-12,654.66-5,191.02

Finding the Fourth Proportional to 9,169.91, 12,654.66 and 5,191.02

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Solution

The fourth proportional to 9,169.91, 12,654.66 and 5,191.02 is: 7,163.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,169.91 : 12,654.66 = 5,191.02 : x
  2. Step 2: Convert to fraction form
    9,169.91/12,654.66 = 5,191.02/x
  3. Step 3: Cross multiply
    9,169.91x = 12,654.66 × 5,191.02
  4. Step 4: Simplify right side
    9,169.91x = 65,690,593.15
  5. Step 5: Solve for x
    x = 65,690,593.15/9,169.91
  6. Step 6: Final answer
    x = 7,163.72

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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.