Home / 8,515.29-12,770.97-3,248.38

Finding the Fourth Proportional to 8,515.29, 12,770.97 and 3,248.38

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Solution

The fourth proportional to 8,515.29, 12,770.97 and 3,248.38 is: 4,871.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.29 : 12,770.97 = 3,248.38 : x
  2. Step 2: Convert to fraction form
    8,515.29/12,770.97 = 3,248.38/x
  3. Step 3: Cross multiply
    8,515.29x = 12,770.97 × 3,248.38
  4. Step 4: Simplify right side
    8,515.29x = 41,484,941.67
  5. Step 5: Solve for x
    x = 41,484,941.67/8,515.29
  6. Step 6: Final answer
    x = 4,871.82

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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.