Home / 19,750.65-27,253.83-11,791.78

Finding the Fourth Proportional to 19,750.65, 27,253.83 and 11,791.78

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Solution

The fourth proportional to 19,750.65, 27,253.83 and 11,791.78 is: 16,271.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,750.65 : 27,253.83 = 11,791.78 : x
  2. Step 2: Convert to fraction form
    19,750.65/27,253.83 = 11,791.78/x
  3. Step 3: Cross multiply
    19,750.65x = 27,253.83 × 11,791.78
  4. Step 4: Simplify right side
    19,750.65x = 321,371,167.52
  5. Step 5: Solve for x
    x = 321,371,167.52/19,750.65
  6. Step 6: Final answer
    x = 16,271.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.