Home / 8,116.52-12,178.14-2,922.92

Finding the Fourth Proportional to 8,116.52, 12,178.14 and 2,922.92

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Solution

The fourth proportional to 8,116.52, 12,178.14 and 2,922.92 is: 4,385.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,116.52 : 12,178.14 = 2,922.92 : x
  2. Step 2: Convert to fraction form
    8,116.52/12,178.14 = 2,922.92/x
  3. Step 3: Cross multiply
    8,116.52x = 12,178.14 × 2,922.92
  4. Step 4: Simplify right side
    8,116.52x = 35,595,728.97
  5. Step 5: Solve for x
    x = 35,595,728.97/8,116.52
  6. Step 6: Final answer
    x = 4,385.59

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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.