Home / 7,127.27-10,691.09-3,378.17

Finding the Fourth Proportional to 7,127.27, 10,691.09 and 3,378.17

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Solution

The fourth proportional to 7,127.27, 10,691.09 and 3,378.17 is: 5,067.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.27 : 10,691.09 = 3,378.17 : x
  2. Step 2: Convert to fraction form
    7,127.27/10,691.09 = 3,378.17/x
  3. Step 3: Cross multiply
    7,127.27x = 10,691.09 × 3,378.17
  4. Step 4: Simplify right side
    7,127.27x = 36,116,249.16
  5. Step 5: Solve for x
    x = 36,116,249.16/7,127.27
  6. Step 6: Final answer
    x = 5,067.34

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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.