Home / 10,079.85-15,115.11-5,399.04

Finding the Fourth Proportional to 10,079.85, 15,115.11 and 5,399.04

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Solution

The fourth proportional to 10,079.85, 15,115.11 and 5,399.04 is: 8,096.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,079.85 : 15,115.11 = 5,399.04 : x
  2. Step 2: Convert to fraction form
    10,079.85/15,115.11 = 5,399.04/x
  3. Step 3: Cross multiply
    10,079.85x = 15,115.11 × 5,399.04
  4. Step 4: Simplify right side
    10,079.85x = 81,607,083.49
  5. Step 5: Solve for x
    x = 81,607,083.49/10,079.85
  6. Step 6: Final answer
    x = 8,096.06

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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.