Home / 8,616.30-12,919.05-3,684.66

Finding the Fourth Proportional to 8,616.30, 12,919.05 and 3,684.66

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Solution

The fourth proportional to 8,616.30, 12,919.05 and 3,684.66 is: 5,524.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616.30 : 12,919.05 = 3,684.66 : x
  2. Step 2: Convert to fraction form
    8,616.30/12,919.05 = 3,684.66/x
  3. Step 3: Cross multiply
    8,616.30x = 12,919.05 × 3,684.66
  4. Step 4: Simplify right side
    8,616.30x = 47,602,306.77
  5. Step 5: Solve for x
    x = 47,602,306.77/8,616.30
  6. Step 6: Final answer
    x = 5,524.68

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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.