Home / 10,891.28-15,029.97-6,110.56

Finding the Fourth Proportional to 10,891.28, 15,029.97 and 6,110.56

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Solution

The fourth proportional to 10,891.28, 15,029.97 and 6,110.56 is: 8,432.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.28 : 15,029.97 = 6,110.56 : x
  2. Step 2: Convert to fraction form
    10,891.28/15,029.97 = 6,110.56/x
  3. Step 3: Cross multiply
    10,891.28x = 15,029.97 × 6,110.56
  4. Step 4: Simplify right side
    10,891.28x = 91,841,585.44
  5. Step 5: Solve for x
    x = 91,841,585.44/10,891.28
  6. Step 6: Final answer
    x = 8,432.58

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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.