Home / 8,256.83-12,385.13-3,871.17

Finding the Fourth Proportional to 8,256.83, 12,385.13 and 3,871.17

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Solution

The fourth proportional to 8,256.83, 12,385.13 and 3,871.17 is: 5,806.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,256.83 : 12,385.13 = 3,871.17 : x
  2. Step 2: Convert to fraction form
    8,256.83/12,385.13 = 3,871.17/x
  3. Step 3: Cross multiply
    8,256.83x = 12,385.13 × 3,871.17
  4. Step 4: Simplify right side
    8,256.83x = 47,944,924.35
  5. Step 5: Solve for x
    x = 47,944,924.35/8,256.83
  6. Step 6: Final answer
    x = 5,806.70

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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.