Home / 17,987.43-24,825.87-11,278.80

Finding the Fourth Proportional to 17,987.43, 24,825.87 and 11,278.80

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Solution

The fourth proportional to 17,987.43, 24,825.87 and 11,278.80 is: 15,566.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,987.43 : 24,825.87 = 11,278.80 : x
  2. Step 2: Convert to fraction form
    17,987.43/24,825.87 = 11,278.80/x
  3. Step 3: Cross multiply
    17,987.43x = 24,825.87 × 11,278.80
  4. Step 4: Simplify right side
    17,987.43x = 280,006,022.56
  5. Step 5: Solve for x
    x = 280,006,022.56/17,987.43
  6. Step 6: Final answer
    x = 15,566.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.