Home / 8,920.17-13,382.28-6,147.95

Finding the Fourth Proportional to 8,920.17, 13,382.28 and 6,147.95

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Solution

The fourth proportional to 8,920.17, 13,382.28 and 6,147.95 is: 9,223.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.17 : 13,382.28 = 6,147.95 : x
  2. Step 2: Convert to fraction form
    8,920.17/13,382.28 = 6,147.95/x
  3. Step 3: Cross multiply
    8,920.17x = 13,382.28 × 6,147.95
  4. Step 4: Simplify right side
    8,920.17x = 82,273,521.41
  5. Step 5: Solve for x
    x = 82,273,521.41/8,920.17
  6. Step 6: Final answer
    x = 9,223.31

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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.