Home / 8,521.14-12,781.84-2,677.75

Finding the Fourth Proportional to 8,521.14, 12,781.84 and 2,677.75

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Solution

The fourth proportional to 8,521.14, 12,781.84 and 2,677.75 is: 4,016.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.14 : 12,781.84 = 2,677.75 : x
  2. Step 2: Convert to fraction form
    8,521.14/12,781.84 = 2,677.75/x
  3. Step 3: Cross multiply
    8,521.14x = 12,781.84 × 2,677.75
  4. Step 4: Simplify right side
    8,521.14x = 34,226,516.69
  5. Step 5: Solve for x
    x = 34,226,516.69/8,521.14
  6. Step 6: Final answer
    x = 4,016.66

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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.