Home / 8,972.52-12,380.68-5,194.95

Finding the Fourth Proportional to 8,972.52, 12,380.68 and 5,194.95

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Solution

The fourth proportional to 8,972.52, 12,380.68 and 5,194.95 is: 7,168.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.52 : 12,380.68 = 5,194.95 : x
  2. Step 2: Convert to fraction form
    8,972.52/12,380.68 = 5,194.95/x
  3. Step 3: Cross multiply
    8,972.52x = 12,380.68 × 5,194.95
  4. Step 4: Simplify right side
    8,972.52x = 64,317,013.57
  5. Step 5: Solve for x
    x = 64,317,013.57/8,972.52
  6. Step 6: Final answer
    x = 7,168.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.