Home / 8,520.60-12,781.02-2,677.22

Finding the Fourth Proportional to 8,520.60, 12,781.02 and 2,677.22

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Solution

The fourth proportional to 8,520.60, 12,781.02 and 2,677.22 is: 4,015.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.60 : 12,781.02 = 2,677.22 : x
  2. Step 2: Convert to fraction form
    8,520.60/12,781.02 = 2,677.22/x
  3. Step 3: Cross multiply
    8,520.60x = 12,781.02 × 2,677.22
  4. Step 4: Simplify right side
    8,520.60x = 34,217,538.46
  5. Step 5: Solve for x
    x = 34,217,538.46/8,520.60
  6. Step 6: Final answer
    x = 4,015.86

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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.