Home / 8,390.85-12,575.51-3,463.95

Finding the Fourth Proportional to 8,390.85, 12,575.51 and 3,463.95

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Solution

The fourth proportional to 8,390.85, 12,575.51 and 3,463.95 is: 5,191.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.85 : 12,575.51 = 3,463.95 : x
  2. Step 2: Convert to fraction form
    8,390.85/12,575.51 = 3,463.95/x
  3. Step 3: Cross multiply
    8,390.85x = 12,575.51 × 3,463.95
  4. Step 4: Simplify right side
    8,390.85x = 43,560,937.86
  5. Step 5: Solve for x
    x = 43,560,937.86/8,390.85
  6. Step 6: Final answer
    x = 5,191.48

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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.