Home / 8,311.15-12,463.85-2,386.43

Finding the Fourth Proportional to 8,311.15, 12,463.85 and 2,386.43

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Solution

The fourth proportional to 8,311.15, 12,463.85 and 2,386.43 is: 3,578.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.15 : 12,463.85 = 2,386.43 : x
  2. Step 2: Convert to fraction form
    8,311.15/12,463.85 = 2,386.43/x
  3. Step 3: Cross multiply
    8,311.15x = 12,463.85 × 2,386.43
  4. Step 4: Simplify right side
    8,311.15x = 29,744,095.94
  5. Step 5: Solve for x
    x = 29,744,095.94/8,311.15
  6. Step 6: Final answer
    x = 3,578.82

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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.