Home / 19,860.39-29,791.50-8,767.14

Finding the Fourth Proportional to 19,860.39, 29,791.50 and 8,767.14

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Solution

The fourth proportional to 19,860.39, 29,791.50 and 8,767.14 is: 13,151.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.39 : 29,791.50 = 8,767.14 : x
  2. Step 2: Convert to fraction form
    19,860.39/29,791.50 = 8,767.14/x
  3. Step 3: Cross multiply
    19,860.39x = 29,791.50 × 8,767.14
  4. Step 4: Simplify right side
    19,860.39x = 261,186,106.72
  5. Step 5: Solve for x
    x = 261,186,106.72/19,860.39
  6. Step 6: Final answer
    x = 13,151.11

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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.