Home / 7,717.14-11,575.71-5,418.90

Finding the Fourth Proportional to 7,717.14, 11,575.71 and 5,418.90

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Solution

The fourth proportional to 7,717.14, 11,575.71 and 5,418.90 is: 8,128.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.14 : 11,575.71 = 5,418.90 : x
  2. Step 2: Convert to fraction form
    7,717.14/11,575.71 = 5,418.90/x
  3. Step 3: Cross multiply
    7,717.14x = 11,575.71 × 5,418.90
  4. Step 4: Simplify right side
    7,717.14x = 62,727,614.92
  5. Step 5: Solve for x
    x = 62,727,614.92/7,717.14
  6. Step 6: Final answer
    x = 8,128.35

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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.