Home / 18,115.43-24,987.79-13,087.04

Finding the Fourth Proportional to 18,115.43, 24,987.79 and 13,087.04

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Solution

The fourth proportional to 18,115.43, 24,987.79 and 13,087.04 is: 18,051.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,115.43 : 24,987.79 = 13,087.04 : x
  2. Step 2: Convert to fraction form
    18,115.43/24,987.79 = 13,087.04/x
  3. Step 3: Cross multiply
    18,115.43x = 24,987.79 × 13,087.04
  4. Step 4: Simplify right side
    18,115.43x = 327,016,236.99
  5. Step 5: Solve for x
    x = 327,016,236.99/18,115.43
  6. Step 6: Final answer
    x = 18,051.80

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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.