Home / 8,760.29-13,142.17-3,213.68

Finding the Fourth Proportional to 8,760.29, 13,142.17 and 3,213.68

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Solution

The fourth proportional to 8,760.29, 13,142.17 and 3,213.68 is: 4,821.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.29 : 13,142.17 = 3,213.68 : x
  2. Step 2: Convert to fraction form
    8,760.29/13,142.17 = 3,213.68/x
  3. Step 3: Cross multiply
    8,760.29x = 13,142.17 × 3,213.68
  4. Step 4: Simplify right side
    8,760.29x = 42,234,750.69
  5. Step 5: Solve for x
    x = 42,234,750.69/8,760.29
  6. Step 6: Final answer
    x = 4,821.16

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1.5x scale

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.