Home / 11,187.16-16,778.92-3,791.52

Finding the Fourth Proportional to 11,187.16, 16,778.92 and 3,791.52

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Solution

The fourth proportional to 11,187.16, 16,778.92 and 3,791.52 is: 5,686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.16 : 16,778.92 = 3,791.52 : x
  2. Step 2: Convert to fraction form
    11,187.16/16,778.92 = 3,791.52/x
  3. Step 3: Cross multiply
    11,187.16x = 16,778.92 × 3,791.52
  4. Step 4: Simplify right side
    11,187.16x = 63,617,610.76
  5. Step 5: Solve for x
    x = 63,617,610.76/11,187.16
  6. Step 6: Final answer
    x = 5,686.66

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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.