Home / 19,786.33-29,685.71-11,897.47

Finding the Fourth Proportional to 19,786.33, 29,685.71 and 11,897.47

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Solution

The fourth proportional to 19,786.33, 29,685.71 and 11,897.47 is: 17,849.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,786.33 : 29,685.71 = 11,897.47 : x
  2. Step 2: Convert to fraction form
    19,786.33/29,685.71 = 11,897.47/x
  3. Step 3: Cross multiply
    19,786.33x = 29,685.71 × 11,897.47
  4. Step 4: Simplify right side
    19,786.33x = 353,184,844.15
  5. Step 5: Solve for x
    x = 353,184,844.15/19,786.33
  6. Step 6: Final answer
    x = 17,849.94

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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.