Home / 8,901.28-12,283.76-4,922.72

Finding the Fourth Proportional to 8,901.28, 12,283.76 and 4,922.72

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Solution

The fourth proportional to 8,901.28, 12,283.76 and 4,922.72 is: 6,793.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.28 : 12,283.76 = 4,922.72 : x
  2. Step 2: Convert to fraction form
    8,901.28/12,283.76 = 4,922.72/x
  3. Step 3: Cross multiply
    8,901.28x = 12,283.76 × 4,922.72
  4. Step 4: Simplify right side
    8,901.28x = 60,469,511.03
  5. Step 5: Solve for x
    x = 60,469,511.03/8,901.28
  6. Step 6: Final answer
    x = 6,793.35

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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.