Home / 10,211.62-15,320.50-8,448.66

Finding the Fourth Proportional to 10,211.62, 15,320.50 and 8,448.66

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Solution

The fourth proportional to 10,211.62, 15,320.50 and 8,448.66 is: 12,675.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211.62 : 15,320.50 = 8,448.66 : x
  2. Step 2: Convert to fraction form
    10,211.62/15,320.50 = 8,448.66/x
  3. Step 3: Cross multiply
    10,211.62x = 15,320.50 × 8,448.66
  4. Step 4: Simplify right side
    10,211.62x = 129,437,695.53
  5. Step 5: Solve for x
    x = 129,437,695.53/10,211.62
  6. Step 6: Final answer
    x = 12,675.53

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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.