Home / 18,834.82-25,991.14-11,281.47

Finding the Fourth Proportional to 18,834.82, 25,991.14 and 11,281.47

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Solution

The fourth proportional to 18,834.82, 25,991.14 and 11,281.47 is: 15,567.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,834.82 : 25,991.14 = 11,281.47 : x
  2. Step 2: Convert to fraction form
    18,834.82/25,991.14 = 11,281.47/x
  3. Step 3: Cross multiply
    18,834.82x = 25,991.14 × 11,281.47
  4. Step 4: Simplify right side
    18,834.82x = 293,218,266.18
  5. Step 5: Solve for x
    x = 293,218,266.18/18,834.82
  6. Step 6: Final answer
    x = 15,567.88

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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.