Home / 18,171.19-25,077.56-11,098.95

Finding the Fourth Proportional to 18,171.19, 25,077.56 and 11,098.95

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Solution

The fourth proportional to 18,171.19, 25,077.56 and 11,098.95 is: 15,317.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171.19 : 25,077.56 = 11,098.95 : x
  2. Step 2: Convert to fraction form
    18,171.19/25,077.56 = 11,098.95/x
  3. Step 3: Cross multiply
    18,171.19x = 25,077.56 × 11,098.95
  4. Step 4: Simplify right side
    18,171.19x = 278,334,584.56
  5. Step 5: Solve for x
    x = 278,334,584.56/18,171.19
  6. Step 6: Final answer
    x = 15,317.36

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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.