Home / 8,472.20-11,691.36-4,695.26

Finding the Fourth Proportional to 8,472.20, 11,691.36 and 4,695.26

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Solution

The fourth proportional to 8,472.20, 11,691.36 and 4,695.26 is: 6,479.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.20 : 11,691.36 = 4,695.26 : x
  2. Step 2: Convert to fraction form
    8,472.20/11,691.36 = 4,695.26/x
  3. Step 3: Cross multiply
    8,472.20x = 11,691.36 × 4,695.26
  4. Step 4: Simplify right side
    8,472.20x = 54,893,974.95
  5. Step 5: Solve for x
    x = 54,893,974.95/8,472.20
  6. Step 6: Final answer
    x = 6,479.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.