Home / 11,229.60-16,844.40-10,279.20

Finding the Fourth Proportional to 11,229.60, 16,844.40 and 10,279.20

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Solution

The fourth proportional to 11,229.60, 16,844.40 and 10,279.20 is: 15,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,229.60 : 16,844.40 = 10,279.20 : x
  2. Step 2: Convert to fraction form
    11,229.60/16,844.40 = 10,279.20/x
  3. Step 3: Cross multiply
    11,229.60x = 16,844.40 × 10,279.20
  4. Step 4: Simplify right side
    11,229.60x = 173,146,956.48
  5. Step 5: Solve for x
    x = 173,146,956.48/11,229.60
  6. Step 6: Final answer
    x = 15,418.80

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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.