Home / 10,581.28-15,872.98-3,919.57

Finding the Fourth Proportional to 10,581.28, 15,872.98 and 3,919.57

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Solution

The fourth proportional to 10,581.28, 15,872.98 and 3,919.57 is: 5,879.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,581.28 : 15,872.98 = 3,919.57 : x
  2. Step 2: Convert to fraction form
    10,581.28/15,872.98 = 3,919.57/x
  3. Step 3: Cross multiply
    10,581.28x = 15,872.98 × 3,919.57
  4. Step 4: Simplify right side
    10,581.28x = 62,215,266.02
  5. Step 5: Solve for x
    x = 62,215,266.02/10,581.28
  6. Step 6: Final answer
    x = 5,879.75

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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.