Home / 11,014.97-15,200.70-5,979.20

Finding the Fourth Proportional to 11,014.97, 15,200.70 and 5,979.20

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Solution

The fourth proportional to 11,014.97, 15,200.70 and 5,979.20 is: 8,251.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,014.97 : 15,200.70 = 5,979.20 : x
  2. Step 2: Convert to fraction form
    11,014.97/15,200.70 = 5,979.20/x
  3. Step 3: Cross multiply
    11,014.97x = 15,200.70 × 5,979.20
  4. Step 4: Simplify right side
    11,014.97x = 90,888,025.44
  5. Step 5: Solve for x
    x = 90,888,025.44/11,014.97
  6. Step 6: Final answer
    x = 8,251.32

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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.