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Finding the Fourth Proportional to 11,014.80, 15,200.49 and 5,979.11

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Solution

The fourth proportional to 11,014.80, 15,200.49 and 5,979.11 is: 8,251.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,014.80 : 15,200.49 = 5,979.11 : x
  2. Step 2: Convert to fraction form
    11,014.80/15,200.49 = 5,979.11/x
  3. Step 3: Cross multiply
    11,014.80x = 15,200.49 × 5,979.11
  4. Step 4: Simplify right side
    11,014.80x = 90,885,325.76
  5. Step 5: Solve for x
    x = 90,885,325.76/11,014.80
  6. Step 6: Final answer
    x = 8,251.20

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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.