Home / 8,079.04-12,115.42-3,398.86

Finding the Fourth Proportional to 8,079.04, 12,115.42 and 3,398.86

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Solution

The fourth proportional to 8,079.04, 12,115.42 and 3,398.86 is: 5,096.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079.04 : 12,115.42 = 3,398.86 : x
  2. Step 2: Convert to fraction form
    8,079.04/12,115.42 = 3,398.86/x
  3. Step 3: Cross multiply
    8,079.04x = 12,115.42 × 3,398.86
  4. Step 4: Simplify right side
    8,079.04x = 41,178,642.19
  5. Step 5: Solve for x
    x = 41,178,642.19/8,079.04
  6. Step 6: Final answer
    x = 5,096.97

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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.