Home / 8,651.38-12,960.66-5,133.96

Finding the Fourth Proportional to 8,651.38, 12,960.66 and 5,133.96

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Solution

The fourth proportional to 8,651.38, 12,960.66 and 5,133.96 is: 7,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,651.38 : 12,960.66 = 5,133.96 : x
  2. Step 2: Convert to fraction form
    8,651.38/12,960.66 = 5,133.96/x
  3. Step 3: Cross multiply
    8,651.38x = 12,960.66 × 5,133.96
  4. Step 4: Simplify right side
    8,651.38x = 66,539,510.01
  5. Step 5: Solve for x
    x = 66,539,510.01/8,651.38
  6. Step 6: Final answer
    x = 7,691.20

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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.