Home / 10,112.13-15,169.50-3,540.20

Finding the Fourth Proportional to 10,112.13, 15,169.50 and 3,540.20

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Solution

The fourth proportional to 10,112.13, 15,169.50 and 3,540.20 is: 5,310.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,112.13 : 15,169.50 = 3,540.20 : x
  2. Step 2: Convert to fraction form
    10,112.13/15,169.50 = 3,540.20/x
  3. Step 3: Cross multiply
    10,112.13x = 15,169.50 × 3,540.20
  4. Step 4: Simplify right side
    10,112.13x = 53,702,988.05
  5. Step 5: Solve for x
    x = 53,702,988.05/10,112.13
  6. Step 6: Final answer
    x = 5,310.75

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1.5x scale

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.