Home / 10,540.83-15,809.45-3,520.04

Finding the Fourth Proportional to 10,540.83, 15,809.45 and 3,520.04

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Solution

The fourth proportional to 10,540.83, 15,809.45 and 3,520.04 is: 5,279.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,540.83 : 15,809.45 = 3,520.04 : x
  2. Step 2: Convert to fraction form
    10,540.83/15,809.45 = 3,520.04/x
  3. Step 3: Cross multiply
    10,540.83x = 15,809.45 × 3,520.04
  4. Step 4: Simplify right side
    10,540.83x = 55,649,962.78
  5. Step 5: Solve for x
    x = 55,649,962.78/10,540.83
  6. Step 6: Final answer
    x = 5,279.47

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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.