Home / 8,520.41-12,781.33-2,677.02

Finding the Fourth Proportional to 8,520.41, 12,781.33 and 2,677.02

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Solution

The fourth proportional to 8,520.41, 12,781.33 and 2,677.02 is: 4,015.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.41 : 12,781.33 = 2,677.02 : x
  2. Step 2: Convert to fraction form
    8,520.41/12,781.33 = 2,677.02/x
  3. Step 3: Cross multiply
    8,520.41x = 12,781.33 × 2,677.02
  4. Step 4: Simplify right side
    8,520.41x = 34,215,869.34
  5. Step 5: Solve for x
    x = 34,215,869.34/8,520.41
  6. Step 6: Final answer
    x = 4,015.76

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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.