Home / 12,426.75-17,144.28-7,391.16

Finding the Fourth Proportional to 12,426.75, 17,144.28 and 7,391.16

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Solution

The fourth proportional to 12,426.75, 17,144.28 and 7,391.16 is: 10,197.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,426.75 : 17,144.28 = 7,391.16 : x
  2. Step 2: Convert to fraction form
    12,426.75/17,144.28 = 7,391.16/x
  3. Step 3: Cross multiply
    12,426.75x = 17,144.28 × 7,391.16
  4. Step 4: Simplify right side
    12,426.75x = 126,716,116.56
  5. Step 5: Solve for x
    x = 126,716,116.56/12,426.75
  6. Step 6: Final answer
    x = 10,197.04

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.