Home / 8,151.24-12,219.66-3,531.72

Finding the Fourth Proportional to 8,151.24, 12,219.66 and 3,531.72

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Solution

The fourth proportional to 8,151.24, 12,219.66 and 3,531.72 is: 5,294.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.24 : 12,219.66 = 3,531.72 : x
  2. Step 2: Convert to fraction form
    8,151.24/12,219.66 = 3,531.72/x
  3. Step 3: Cross multiply
    8,151.24x = 12,219.66 × 3,531.72
  4. Step 4: Simplify right side
    8,151.24x = 43,156,417.62
  5. Step 5: Solve for x
    x = 43,156,417.62/8,151.24
  6. Step 6: Final answer
    x = 5,294.46

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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.