Home / 18,691.25-28,040.96-5,543.27

Finding the Fourth Proportional to 18,691.25, 28,040.96 and 5,543.27

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Solution

The fourth proportional to 18,691.25, 28,040.96 and 5,543.27 is: 8,316.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,691.25 : 28,040.96 = 5,543.27 : x
  2. Step 2: Convert to fraction form
    18,691.25/28,040.96 = 5,543.27/x
  3. Step 3: Cross multiply
    18,691.25x = 28,040.96 × 5,543.27
  4. Step 4: Simplify right side
    18,691.25x = 155,438,444.42
  5. Step 5: Solve for x
    x = 155,438,444.42/18,691.25
  6. Step 6: Final answer
    x = 8,316.11

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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.