Home / 17,971.80-26,926.32-11,721.84

Finding the Fourth Proportional to 17,971.80, 26,926.32 and 11,721.84

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Solution

The fourth proportional to 17,971.80, 26,926.32 and 11,721.84 is: 17,562.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,971.80 : 26,926.32 = 11,721.84 : x
  2. Step 2: Convert to fraction form
    17,971.80/26,926.32 = 11,721.84/x
  3. Step 3: Cross multiply
    17,971.80x = 26,926.32 × 11,721.84
  4. Step 4: Simplify right side
    17,971.80x = 315,626,014.83
  5. Step 5: Solve for x
    x = 315,626,014.83/17,971.80
  6. Step 6: Final answer
    x = 17,562.29

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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.