Home / 10,319.38-15,481.68-2,923.90

Finding the Fourth Proportional to 10,319.38, 15,481.68 and 2,923.90

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Solution

The fourth proportional to 10,319.38, 15,481.68 and 2,923.90 is: 4,386.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,319.38 : 15,481.68 = 2,923.90 : x
  2. Step 2: Convert to fraction form
    10,319.38/15,481.68 = 2,923.90/x
  3. Step 3: Cross multiply
    10,319.38x = 15,481.68 × 2,923.90
  4. Step 4: Simplify right side
    10,319.38x = 45,266,884.15
  5. Step 5: Solve for x
    x = 45,266,884.15/10,319.38
  6. Step 6: Final answer
    x = 4,386.59

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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.