Home / 8,142.48-12,213.92-2,299.04

Finding the Fourth Proportional to 8,142.48, 12,213.92 and 2,299.04

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Solution

The fourth proportional to 8,142.48, 12,213.92 and 2,299.04 is: 3,448.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.48 : 12,213.92 = 2,299.04 : x
  2. Step 2: Convert to fraction form
    8,142.48/12,213.92 = 2,299.04/x
  3. Step 3: Cross multiply
    8,142.48x = 12,213.92 × 2,299.04
  4. Step 4: Simplify right side
    8,142.48x = 28,080,290.64
  5. Step 5: Solve for x
    x = 28,080,290.64/8,142.48
  6. Step 6: Final answer
    x = 3,448.62

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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.