Home / 10,372.88-15,559.18-2,581.76

Finding the Fourth Proportional to 10,372.88, 15,559.18 and 2,581.76

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Solution

The fourth proportional to 10,372.88, 15,559.18 and 2,581.76 is: 3,872.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,372.88 : 15,559.18 = 2,581.76 : x
  2. Step 2: Convert to fraction form
    10,372.88/15,559.18 = 2,581.76/x
  3. Step 3: Cross multiply
    10,372.88x = 15,559.18 × 2,581.76
  4. Step 4: Simplify right side
    10,372.88x = 40,170,068.56
  5. Step 5: Solve for x
    x = 40,170,068.56/10,372.88
  6. Step 6: Final answer
    x = 3,872.61

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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.