Home / 10,247.58-15,351.92-5,309.82

Finding the Fourth Proportional to 10,247.58, 15,351.92 and 5,309.82

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Solution

The fourth proportional to 10,247.58, 15,351.92 and 5,309.82 is: 7,954.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,247.58 : 15,351.92 = 5,309.82 : x
  2. Step 2: Convert to fraction form
    10,247.58/15,351.92 = 5,309.82/x
  3. Step 3: Cross multiply
    10,247.58x = 15,351.92 × 5,309.82
  4. Step 4: Simplify right side
    10,247.58x = 81,515,931.85
  5. Step 5: Solve for x
    x = 81,515,931.85/10,247.58
  6. Step 6: Final answer
    x = 7,954.65

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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.