Home / 18,687.67-28,034.96-5,360.11

Finding the Fourth Proportional to 18,687.67, 28,034.96 and 5,360.11

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Solution

The fourth proportional to 18,687.67, 28,034.96 and 5,360.11 is: 8,041.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,687.67 : 28,034.96 = 5,360.11 : x
  2. Step 2: Convert to fraction form
    18,687.67/28,034.96 = 5,360.11/x
  3. Step 3: Cross multiply
    18,687.67x = 28,034.96 × 5,360.11
  4. Step 4: Simplify right side
    18,687.67x = 150,270,329.27
  5. Step 5: Solve for x
    x = 150,270,329.27/18,687.67
  6. Step 6: Final answer
    x = 8,041.15

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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.