Home / 10,105.44-15,155.28-3,948

Finding the Fourth Proportional to 10,105.44, 15,155.28 and 3,948

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Solution

The fourth proportional to 10,105.44, 15,155.28 and 3,948 is: 5,920.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,105.44 : 15,155.28 = 3,948 : x
  2. Step 2: Convert to fraction form
    10,105.44/15,155.28 = 3,948/x
  3. Step 3: Cross multiply
    10,105.44x = 15,155.28 × 3,948
  4. Step 4: Simplify right side
    10,105.44x = 59,833,045.44
  5. Step 5: Solve for x
    x = 59,833,045.44/10,105.44
  6. Step 6: Final answer
    x = 5,920.87

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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.