Home / 15,791.50-21,800.46-11,537.79

Finding the Fourth Proportional to 15,791.50, 21,800.46 and 11,537.79

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Solution

The fourth proportional to 15,791.50, 21,800.46 and 11,537.79 is: 15,928.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,791.50 : 21,800.46 = 11,537.79 : x
  2. Step 2: Convert to fraction form
    15,791.50/21,800.46 = 11,537.79/x
  3. Step 3: Cross multiply
    15,791.50x = 21,800.46 × 11,537.79
  4. Step 4: Simplify right side
    15,791.50x = 251,529,129.38
  5. Step 5: Solve for x
    x = 251,529,129.38/15,791.50
  6. Step 6: Final answer
    x = 15,928.13

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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.