Home / 8,517.67-12,760.40-4,822.55

Finding the Fourth Proportional to 8,517.67, 12,760.40 and 4,822.55

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Solution

The fourth proportional to 8,517.67, 12,760.40 and 4,822.55 is: 7,224.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,517.67 : 12,760.40 = 4,822.55 : x
  2. Step 2: Convert to fraction form
    8,517.67/12,760.40 = 4,822.55/x
  3. Step 3: Cross multiply
    8,517.67x = 12,760.40 × 4,822.55
  4. Step 4: Simplify right side
    8,517.67x = 61,537,663.13
  5. Step 5: Solve for x
    x = 61,537,663.13/8,517.67
  6. Step 6: Final answer
    x = 7,224.71

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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.