Home / 18,988.74-26,193.51-11,429.82

Finding the Fourth Proportional to 18,988.74, 26,193.51 and 11,429.82

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Solution

The fourth proportional to 18,988.74, 26,193.51 and 11,429.82 is: 15,766.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,988.74 : 26,193.51 = 11,429.82 : x
  2. Step 2: Convert to fraction form
    18,988.74/26,193.51 = 11,429.82/x
  3. Step 3: Cross multiply
    18,988.74x = 26,193.51 × 11,429.82
  4. Step 4: Simplify right side
    18,988.74x = 299,387,104.47
  5. Step 5: Solve for x
    x = 299,387,104.47/18,988.74
  6. Step 6: Final answer
    x = 15,766.56

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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.