Home / 10,540.16-15,819.92-5,349.76

Finding the Fourth Proportional to 10,540.16, 15,819.92 and 5,349.76

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Solution

The fourth proportional to 10,540.16, 15,819.92 and 5,349.76 is: 8,029.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,540.16 : 15,819.92 = 5,349.76 : x
  2. Step 2: Convert to fraction form
    10,540.16/15,819.92 = 5,349.76/x
  3. Step 3: Cross multiply
    10,540.16x = 15,819.92 × 5,349.76
  4. Step 4: Simplify right side
    10,540.16x = 84,632,775.22
  5. Step 5: Solve for x
    x = 84,632,775.22/10,540.16
  6. Step 6: Final answer
    x = 8,029.55

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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.