Home / 8,079.28-12,123.04-3,338.96

Finding the Fourth Proportional to 8,079.28, 12,123.04 and 3,338.96

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Solution

The fourth proportional to 8,079.28, 12,123.04 and 3,338.96 is: 5,010.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079.28 : 12,123.04 = 3,338.96 : x
  2. Step 2: Convert to fraction form
    8,079.28/12,123.04 = 3,338.96/x
  3. Step 3: Cross multiply
    8,079.28x = 12,123.04 × 3,338.96
  4. Step 4: Simplify right side
    8,079.28x = 40,478,345.64
  5. Step 5: Solve for x
    x = 40,478,345.64/8,079.28
  6. Step 6: Final answer
    x = 5,010.14

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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.