Home / 11,144.28-15,374.16-7,163.88

Finding the Fourth Proportional to 11,144.28, 15,374.16 and 7,163.88

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Solution

The fourth proportional to 11,144.28, 15,374.16 and 7,163.88 is: 9,882.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,144.28 : 15,374.16 = 7,163.88 : x
  2. Step 2: Convert to fraction form
    11,144.28/15,374.16 = 7,163.88/x
  3. Step 3: Cross multiply
    11,144.28x = 15,374.16 × 7,163.88
  4. Step 4: Simplify right side
    11,144.28x = 110,138,637.34
  5. Step 5: Solve for x
    x = 110,138,637.34/11,144.28
  6. Step 6: Final answer
    x = 9,882.97

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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.