Home / 15,791.78-23,661.75-5,397.86

Finding the Fourth Proportional to 15,791.78, 23,661.75 and 5,397.86

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Solution

The fourth proportional to 15,791.78, 23,661.75 and 5,397.86 is: 8,087.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,791.78 : 23,661.75 = 5,397.86 : x
  2. Step 2: Convert to fraction form
    15,791.78/23,661.75 = 5,397.86/x
  3. Step 3: Cross multiply
    15,791.78x = 23,661.75 × 5,397.86
  4. Step 4: Simplify right side
    15,791.78x = 127,722,813.86
  5. Step 5: Solve for x
    x = 127,722,813.86/15,791.78
  6. Step 6: Final answer
    x = 8,087.93

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1.5x scale

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.