Home / 8,476.18-12,707.38-7,319.90

Finding the Fourth Proportional to 8,476.18, 12,707.38 and 7,319.90

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Solution

The fourth proportional to 8,476.18, 12,707.38 and 7,319.90 is: 10,973.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,476.18 : 12,707.38 = 7,319.90 : x
  2. Step 2: Convert to fraction form
    8,476.18/12,707.38 = 7,319.90/x
  3. Step 3: Cross multiply
    8,476.18x = 12,707.38 × 7,319.90
  4. Step 4: Simplify right side
    8,476.18x = 93,016,791.78
  5. Step 5: Solve for x
    x = 93,016,791.78/8,476.18
  6. Step 6: Final answer
    x = 10,973.91

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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.