Home / 11,240.24-15,577.12-11,081.68

Finding the Fourth Proportional to 11,240.24, 15,577.12 and 11,081.68

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Solution

The fourth proportional to 11,240.24, 15,577.12 and 11,081.68 is: 15,357.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,240.24 : 15,577.12 = 11,081.68 : x
  2. Step 2: Convert to fraction form
    11,240.24/15,577.12 = 11,081.68/x
  3. Step 3: Cross multiply
    11,240.24x = 15,577.12 × 11,081.68
  4. Step 4: Simplify right side
    11,240.24x = 172,620,659.16
  5. Step 5: Solve for x
    x = 172,620,659.16/11,240.24
  6. Step 6: Final answer
    x = 15,357.39

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Half scale
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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.