Home / 10,112.75-15,169.12-10,098.15

Finding the Fourth Proportional to 10,112.75, 15,169.12 and 10,098.15

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Solution

The fourth proportional to 10,112.75, 15,169.12 and 10,098.15 is: 15,147.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,112.75 : 15,169.12 = 10,098.15 : x
  2. Step 2: Convert to fraction form
    10,112.75/15,169.12 = 10,098.15/x
  3. Step 3: Cross multiply
    10,112.75x = 15,169.12 × 10,098.15
  4. Step 4: Simplify right side
    10,112.75x = 153,180,049.13
  5. Step 5: Solve for x
    x = 153,180,049.13/10,112.75
  6. Step 6: Final answer
    x = 15,147.22

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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.