Home / 18,922.97-28,371.17-8,387.26

Finding the Fourth Proportional to 18,922.97, 28,371.17 and 8,387.26

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Solution

The fourth proportional to 18,922.97, 28,371.17 and 8,387.26 is: 12,575.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,922.97 : 28,371.17 = 8,387.26 : x
  2. Step 2: Convert to fraction form
    18,922.97/28,371.17 = 8,387.26/x
  3. Step 3: Cross multiply
    18,922.97x = 28,371.17 × 8,387.26
  4. Step 4: Simplify right side
    18,922.97x = 237,956,337.36
  5. Step 5: Solve for x
    x = 237,956,337.36/18,922.97
  6. Step 6: Final answer
    x = 12,575.00

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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.