Home / 8,472.18-11,691.63-4,695.28

Finding the Fourth Proportional to 8,472.18, 11,691.63 and 4,695.28

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Solution

The fourth proportional to 8,472.18, 11,691.63 and 4,695.28 is: 6,479.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.18 : 11,691.63 = 4,695.28 : x
  2. Step 2: Convert to fraction form
    8,472.18/11,691.63 = 4,695.28/x
  3. Step 3: Cross multiply
    8,472.18x = 11,691.63 × 4,695.28
  4. Step 4: Simplify right side
    8,472.18x = 54,895,457.12
  5. Step 5: Solve for x
    x = 54,895,457.12/8,472.18
  6. Step 6: Final answer
    x = 6,479.49

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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.