Home / 15,340.39-21,170.77-11,556.88

Finding the Fourth Proportional to 15,340.39, 21,170.77 and 11,556.88

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Solution

The fourth proportional to 15,340.39, 21,170.77 and 11,556.88 is: 15,949.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,340.39 : 21,170.77 = 11,556.88 : x
  2. Step 2: Convert to fraction form
    15,340.39/21,170.77 = 11,556.88/x
  3. Step 3: Cross multiply
    15,340.39x = 21,170.77 × 11,556.88
  4. Step 4: Simplify right side
    15,340.39x = 244,667,966.58
  5. Step 5: Solve for x
    x = 244,667,966.58/15,340.39
  6. Step 6: Final answer
    x = 15,949.27

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.