Home / 10,321.28-15,481.74-2,530.16

Finding the Fourth Proportional to 10,321.28, 15,481.74 and 2,530.16

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Solution

The fourth proportional to 10,321.28, 15,481.74 and 2,530.16 is: 3,795.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,321.28 : 15,481.74 = 2,530.16 : x
  2. Step 2: Convert to fraction form
    10,321.28/15,481.74 = 2,530.16/x
  3. Step 3: Cross multiply
    10,321.28x = 15,481.74 × 2,530.16
  4. Step 4: Simplify right side
    10,321.28x = 39,171,279.28
  5. Step 5: Solve for x
    x = 39,171,279.28/10,321.28
  6. Step 6: Final answer
    x = 3,795.20

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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.