Home / 10,255.29-15,385.23-5,579.52

Finding the Fourth Proportional to 10,255.29, 15,385.23 and 5,579.52

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Solution

The fourth proportional to 10,255.29, 15,385.23 and 5,579.52 is: 8,370.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,255.29 : 15,385.23 = 5,579.52 : x
  2. Step 2: Convert to fraction form
    10,255.29/15,385.23 = 5,579.52/x
  3. Step 3: Cross multiply
    10,255.29x = 15,385.23 × 5,579.52
  4. Step 4: Simplify right side
    10,255.29x = 85,842,198.49
  5. Step 5: Solve for x
    x = 85,842,198.49/10,255.29
  6. Step 6: Final answer
    x = 8,370.53

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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.