Home / 12,839.68-19,265.28-5,449.24

Finding the Fourth Proportional to 12,839.68, 19,265.28 and 5,449.24

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Solution

The fourth proportional to 12,839.68, 19,265.28 and 5,449.24 is: 8,176.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,839.68 : 19,265.28 = 5,449.24 : x
  2. Step 2: Convert to fraction form
    12,839.68/19,265.28 = 5,449.24/x
  3. Step 3: Cross multiply
    12,839.68x = 19,265.28 × 5,449.24
  4. Step 4: Simplify right side
    12,839.68x = 104,981,134.39
  5. Step 5: Solve for x
    x = 104,981,134.39/12,839.68
  6. Step 6: Final answer
    x = 8,176.30

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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.