Home / 18,854.90-28,294.27-10,540.38

Finding the Fourth Proportional to 18,854.90, 28,294.27 and 10,540.38

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Solution

The fourth proportional to 18,854.90, 28,294.27 and 10,540.38 is: 15,817.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,854.90 : 28,294.27 = 10,540.38 : x
  2. Step 2: Convert to fraction form
    18,854.90/28,294.27 = 10,540.38/x
  3. Step 3: Cross multiply
    18,854.90x = 28,294.27 × 10,540.38
  4. Step 4: Simplify right side
    18,854.90x = 298,232,387.44
  5. Step 5: Solve for x
    x = 298,232,387.44/18,854.90
  6. Step 6: Final answer
    x = 15,817.23

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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.