Home / 10,247.76-15,371.10-3,321.72

Finding the Fourth Proportional to 10,247.76, 15,371.10 and 3,321.72

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Solution

The fourth proportional to 10,247.76, 15,371.10 and 3,321.72 is: 4,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,247.76 : 15,371.10 = 3,321.72 : x
  2. Step 2: Convert to fraction form
    10,247.76/15,371.10 = 3,321.72/x
  3. Step 3: Cross multiply
    10,247.76x = 15,371.10 × 3,321.72
  4. Step 4: Simplify right side
    10,247.76x = 51,058,490.29
  5. Step 5: Solve for x
    x = 51,058,490.29/10,247.76
  6. Step 6: Final answer
    x = 4,982.40

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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.