Home / 8,101.28-12,151.56-4,640.96

Finding the Fourth Proportional to 8,101.28, 12,151.56 and 4,640.96

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Solution

The fourth proportional to 8,101.28, 12,151.56 and 4,640.96 is: 6,961.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,101.28 : 12,151.56 = 4,640.96 : x
  2. Step 2: Convert to fraction form
    8,101.28/12,151.56 = 4,640.96/x
  3. Step 3: Cross multiply
    8,101.28x = 12,151.56 × 4,640.96
  4. Step 4: Simplify right side
    8,101.28x = 56,394,903.90
  5. Step 5: Solve for x
    x = 56,394,903.90/8,101.28
  6. Step 6: Final answer
    x = 6,961.23

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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.