Home / 8,123.31-12,184.97-2,929.18

Finding the Fourth Proportional to 8,123.31, 12,184.97 and 2,929.18

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Solution

The fourth proportional to 8,123.31, 12,184.97 and 2,929.18 is: 4,393.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.31 : 12,184.97 = 2,929.18 : x
  2. Step 2: Convert to fraction form
    8,123.31/12,184.97 = 2,929.18/x
  3. Step 3: Cross multiply
    8,123.31x = 12,184.97 × 2,929.18
  4. Step 4: Simplify right side
    8,123.31x = 35,691,999.57
  5. Step 5: Solve for x
    x = 35,691,999.57/8,123.31
  6. Step 6: Final answer
    x = 4,393.78

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1.5x scale

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.