Home / 8,919.24-13,376.12-3,375.20

Finding the Fourth Proportional to 8,919.24, 13,376.12 and 3,375.20

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Solution

The fourth proportional to 8,919.24, 13,376.12 and 3,375.20 is: 5,061.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.24 : 13,376.12 = 3,375.20 : x
  2. Step 2: Convert to fraction form
    8,919.24/13,376.12 = 3,375.20/x
  3. Step 3: Cross multiply
    8,919.24x = 13,376.12 × 3,375.20
  4. Step 4: Simplify right side
    8,919.24x = 45,147,080.22
  5. Step 5: Solve for x
    x = 45,147,080.22/8,919.24
  6. Step 6: Final answer
    x = 5,061.76

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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.