Home / 18,773.40-28,169.46-8,382.36

Finding the Fourth Proportional to 18,773.40, 28,169.46 and 8,382.36

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Solution

The fourth proportional to 18,773.40, 28,169.46 and 8,382.36 is: 12,577.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,773.40 : 28,169.46 = 8,382.36 : x
  2. Step 2: Convert to fraction form
    18,773.40/28,169.46 = 8,382.36/x
  3. Step 3: Cross multiply
    18,773.40x = 28,169.46 × 8,382.36
  4. Step 4: Simplify right side
    18,773.40x = 236,126,554.73
  5. Step 5: Solve for x
    x = 236,126,554.73/18,773.40
  6. Step 6: Final answer
    x = 12,577.72

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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.