Home / 15,340.14-21,170.14-8,627.88

Finding the Fourth Proportional to 15,340.14, 21,170.14 and 8,627.88

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Solution

The fourth proportional to 15,340.14, 21,170.14 and 8,627.88 is: 11,906.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,340.14 : 21,170.14 = 8,627.88 : x
  2. Step 2: Convert to fraction form
    15,340.14/21,170.14 = 8,627.88/x
  3. Step 3: Cross multiply
    15,340.14x = 21,170.14 × 8,627.88
  4. Step 4: Simplify right side
    15,340.14x = 182,653,427.50
  5. Step 5: Solve for x
    x = 182,653,427.50/15,340.14
  6. Step 6: Final answer
    x = 11,906.89

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Half scale
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Double scale
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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.