Home / 12,276.45-18,414.68-3,957.70

Finding the Fourth Proportional to 12,276.45, 18,414.68 and 3,957.70

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Solution

The fourth proportional to 12,276.45, 18,414.68 and 3,957.70 is: 5,936.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.45 : 18,414.68 = 3,957.70 : x
  2. Step 2: Convert to fraction form
    12,276.45/18,414.68 = 3,957.70/x
  3. Step 3: Cross multiply
    12,276.45x = 18,414.68 × 3,957.70
  4. Step 4: Simplify right side
    12,276.45x = 72,879,779.04
  5. Step 5: Solve for x
    x = 72,879,779.04/12,276.45
  6. Step 6: Final answer
    x = 5,936.55

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Similar ratio
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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.