Home / 10,317.76-15,475.20-3,391.36

Finding the Fourth Proportional to 10,317.76, 15,475.20 and 3,391.36

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Solution

The fourth proportional to 10,317.76, 15,475.20 and 3,391.36 is: 5,086.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,317.76 : 15,475.20 = 3,391.36 : x
  2. Step 2: Convert to fraction form
    10,317.76/15,475.20 = 3,391.36/x
  3. Step 3: Cross multiply
    10,317.76x = 15,475.20 × 3,391.36
  4. Step 4: Simplify right side
    10,317.76x = 52,481,974.27
  5. Step 5: Solve for x
    x = 52,481,974.27/10,317.76
  6. Step 6: Final answer
    x = 5,086.57

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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.