Home / 18,180.12-25,101.18-13,998.36

Finding the Fourth Proportional to 18,180.12, 25,101.18 and 13,998.36

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Solution

The fourth proportional to 18,180.12, 25,101.18 and 13,998.36 is: 19,327.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,180.12 : 25,101.18 = 13,998.36 : x
  2. Step 2: Convert to fraction form
    18,180.12/25,101.18 = 13,998.36/x
  3. Step 3: Cross multiply
    18,180.12x = 25,101.18 × 13,998.36
  4. Step 4: Simplify right side
    18,180.12x = 351,375,354.06
  5. Step 5: Solve for x
    x = 351,375,354.06/18,180.12
  6. Step 6: Final answer
    x = 19,327.45

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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.