Home / 9,727.20-13,418.60-5,691.38

Finding the Fourth Proportional to 9,727.20, 13,418.60 and 5,691.38

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Solution

The fourth proportional to 9,727.20, 13,418.60 and 5,691.38 is: 7,851.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,727.20 : 13,418.60 = 5,691.38 : x
  2. Step 2: Convert to fraction form
    9,727.20/13,418.60 = 5,691.38/x
  3. Step 3: Cross multiply
    9,727.20x = 13,418.60 × 5,691.38
  4. Step 4: Simplify right side
    9,727.20x = 76,370,351.67
  5. Step 5: Solve for x
    x = 76,370,351.67/9,727.20
  6. Step 6: Final answer
    x = 7,851.22

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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.