Home / 19,786.88-29,678.50-6,637.55

Finding the Fourth Proportional to 19,786.88, 29,678.50 and 6,637.55

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Solution

The fourth proportional to 19,786.88, 29,678.50 and 6,637.55 is: 9,955.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,786.88 : 29,678.50 = 6,637.55 : x
  2. Step 2: Convert to fraction form
    19,786.88/29,678.50 = 6,637.55/x
  3. Step 3: Cross multiply
    19,786.88x = 29,678.50 × 6,637.55
  4. Step 4: Simplify right side
    19,786.88x = 196,992,387.58
  5. Step 5: Solve for x
    x = 196,992,387.58/19,786.88
  6. Step 6: Final answer
    x = 9,955.71

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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.