Home / 7,716.82-11,559.05-6,397.43

Finding the Fourth Proportional to 7,716.82, 11,559.05 and 6,397.43

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Solution

The fourth proportional to 7,716.82, 11,559.05 and 6,397.43 is: 9,582.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.82 : 11,559.05 = 6,397.43 : x
  2. Step 2: Convert to fraction form
    7,716.82/11,559.05 = 6,397.43/x
  3. Step 3: Cross multiply
    7,716.82x = 11,559.05 × 6,397.43
  4. Step 4: Simplify right side
    7,716.82x = 73,948,248.45
  5. Step 5: Solve for x
    x = 73,948,248.45/7,716.82
  6. Step 6: Final answer
    x = 9,582.74

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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.