Home / 8,247.11-12,370.66-6,781.82

Finding the Fourth Proportional to 8,247.11, 12,370.66 and 6,781.82

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Solution

The fourth proportional to 8,247.11, 12,370.66 and 6,781.82 is: 10,172.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,247.11 : 12,370.66 = 6,781.82 : x
  2. Step 2: Convert to fraction form
    8,247.11/12,370.66 = 6,781.82/x
  3. Step 3: Cross multiply
    8,247.11x = 12,370.66 × 6,781.82
  4. Step 4: Simplify right side
    8,247.11x = 83,895,510.59
  5. Step 5: Solve for x
    x = 83,895,510.59/8,247.11
  6. Step 6: Final answer
    x = 10,172.72

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1.5x scale

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.