Home / 11,987.71-17,981.73-4,592.54

Finding the Fourth Proportional to 11,987.71, 17,981.73 and 4,592.54

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Solution

The fourth proportional to 11,987.71, 17,981.73 and 4,592.54 is: 6,888.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.71 : 17,981.73 = 4,592.54 : x
  2. Step 2: Convert to fraction form
    11,987.71/17,981.73 = 4,592.54/x
  3. Step 3: Cross multiply
    11,987.71x = 17,981.73 × 4,592.54
  4. Step 4: Simplify right side
    11,987.71x = 82,581,791.33
  5. Step 5: Solve for x
    x = 82,581,791.33/11,987.71
  6. Step 6: Final answer
    x = 6,888.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.