Home / 10,255.54-15,372.51-5,319.94

Finding the Fourth Proportional to 10,255.54, 15,372.51 and 5,319.94

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Solution

The fourth proportional to 10,255.54, 15,372.51 and 5,319.94 is: 7,974.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,255.54 : 15,372.51 = 5,319.94 : x
  2. Step 2: Convert to fraction form
    10,255.54/15,372.51 = 5,319.94/x
  3. Step 3: Cross multiply
    10,255.54x = 15,372.51 × 5,319.94
  4. Step 4: Simplify right side
    10,255.54x = 81,780,830.85
  5. Step 5: Solve for x
    x = 81,780,830.85/10,255.54
  6. Step 6: Final answer
    x = 7,974.31

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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.