Home / 8,961.28-12,366.50-4,982.31

Finding the Fourth Proportional to 8,961.28, 12,366.50 and 4,982.31

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Solution

The fourth proportional to 8,961.28, 12,366.50 and 4,982.31 is: 6,875.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961.28 : 12,366.50 = 4,982.31 : x
  2. Step 2: Convert to fraction form
    8,961.28/12,366.50 = 4,982.31/x
  3. Step 3: Cross multiply
    8,961.28x = 12,366.50 × 4,982.31
  4. Step 4: Simplify right side
    8,961.28x = 61,613,711.70
  5. Step 5: Solve for x
    x = 61,613,711.70/8,961.28
  6. Step 6: Final answer
    x = 6,875.55

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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.