Home / 10,540.80-15,811.20-3,968.46

Finding the Fourth Proportional to 10,540.80, 15,811.20 and 3,968.46

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Solution

The fourth proportional to 10,540.80, 15,811.20 and 3,968.46 is: 5,952.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,540.80 : 15,811.20 = 3,968.46 : x
  2. Step 2: Convert to fraction form
    10,540.80/15,811.20 = 3,968.46/x
  3. Step 3: Cross multiply
    10,540.80x = 15,811.20 × 3,968.46
  4. Step 4: Simplify right side
    10,540.80x = 62,746,114.75
  5. Step 5: Solve for x
    x = 62,746,114.75/10,540.80
  6. Step 6: Final answer
    x = 5,952.69

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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.