Home / 11,514.24-15,949.80-11,280.96

Finding the Fourth Proportional to 11,514.24, 15,949.80 and 11,280.96

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Solution

The fourth proportional to 11,514.24, 15,949.80 and 11,280.96 is: 15,626.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,514.24 : 15,949.80 = 11,280.96 : x
  2. Step 2: Convert to fraction form
    11,514.24/15,949.80 = 11,280.96/x
  3. Step 3: Cross multiply
    11,514.24x = 15,949.80 × 11,280.96
  4. Step 4: Simplify right side
    11,514.24x = 179,929,055.81
  5. Step 5: Solve for x
    x = 179,929,055.81/11,514.24
  6. Step 6: Final answer
    x = 15,626.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.