Home / 10,131.44-15,179.72-9,104.24

Finding the Fourth Proportional to 10,131.44, 15,179.72 and 9,104.24

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Solution

The fourth proportional to 10,131.44, 15,179.72 and 9,104.24 is: 13,640.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,131.44 : 15,179.72 = 9,104.24 : x
  2. Step 2: Convert to fraction form
    10,131.44/15,179.72 = 9,104.24/x
  3. Step 3: Cross multiply
    10,131.44x = 15,179.72 × 9,104.24
  4. Step 4: Simplify right side
    10,131.44x = 138,199,806.44
  5. Step 5: Solve for x
    x = 138,199,806.44/10,131.44
  6. Step 6: Final answer
    x = 13,640.69

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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.