Home / 7,920.07-11,882.35-3,966.56

Finding the Fourth Proportional to 7,920.07, 11,882.35 and 3,966.56

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Solution

The fourth proportional to 7,920.07, 11,882.35 and 3,966.56 is: 5,950.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920.07 : 11,882.35 = 3,966.56 : x
  2. Step 2: Convert to fraction form
    7,920.07/11,882.35 = 3,966.56/x
  3. Step 3: Cross multiply
    7,920.07x = 11,882.35 × 3,966.56
  4. Step 4: Simplify right side
    7,920.07x = 47,132,044.32
  5. Step 5: Solve for x
    x = 47,132,044.32/7,920.07
  6. Step 6: Final answer
    x = 5,950.96

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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.