Home / 10,481.06-15,722.51-2,689.88

Finding the Fourth Proportional to 10,481.06, 15,722.51 and 2,689.88

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Solution

The fourth proportional to 10,481.06, 15,722.51 and 2,689.88 is: 4,035.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,481.06 : 15,722.51 = 2,689.88 : x
  2. Step 2: Convert to fraction form
    10,481.06/15,722.51 = 2,689.88/x
  3. Step 3: Cross multiply
    10,481.06x = 15,722.51 × 2,689.88
  4. Step 4: Simplify right side
    10,481.06x = 42,291,573.14
  5. Step 5: Solve for x
    x = 42,291,573.14/10,481.06
  6. Step 6: Final answer
    x = 4,035.05

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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.