Home / 18,239.28-25,182-11,169.60

Finding the Fourth Proportional to 18,239.28, 25,182 and 11,169.60

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Solution

The fourth proportional to 18,239.28, 25,182 and 11,169.60 is: 15,421.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,239.28 : 25,182 = 11,169.60 : x
  2. Step 2: Convert to fraction form
    18,239.28/25,182 = 11,169.60/x
  3. Step 3: Cross multiply
    18,239.28x = 25,182 × 11,169.60
  4. Step 4: Simplify right side
    18,239.28x = 281,272,867.20
  5. Step 5: Solve for x
    x = 281,272,867.20/18,239.28
  6. Step 6: Final answer
    x = 15,421.27

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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.