Home / 10,372.30-15,558.42-2,581.11

Finding the Fourth Proportional to 10,372.30, 15,558.42 and 2,581.11

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Solution

The fourth proportional to 10,372.30, 15,558.42 and 2,581.11 is: 3,871.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,372.30 : 15,558.42 = 2,581.11 : x
  2. Step 2: Convert to fraction form
    10,372.30/15,558.42 = 2,581.11/x
  3. Step 3: Cross multiply
    10,372.30x = 15,558.42 × 2,581.11
  4. Step 4: Simplify right side
    10,372.30x = 40,157,993.45
  5. Step 5: Solve for x
    x = 40,157,993.45/10,372.30
  6. Step 6: Final answer
    x = 3,871.66

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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.