Home / 10,207.08-15,321.42-8,581.14

Finding the Fourth Proportional to 10,207.08, 15,321.42 and 8,581.14

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Solution

The fourth proportional to 10,207.08, 15,321.42 and 8,581.14 is: 12,880.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,207.08 : 15,321.42 = 8,581.14 : x
  2. Step 2: Convert to fraction form
    10,207.08/15,321.42 = 8,581.14/x
  3. Step 3: Cross multiply
    10,207.08x = 15,321.42 × 8,581.14
  4. Step 4: Simplify right side
    10,207.08x = 131,475,250.02
  5. Step 5: Solve for x
    x = 131,475,250.02/10,207.08
  6. Step 6: Final answer
    x = 12,880.79

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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.