Home / 15,991.06-22,067.79-9,280.69

Finding the Fourth Proportional to 15,991.06, 22,067.79 and 9,280.69

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Solution

The fourth proportional to 15,991.06, 22,067.79 and 9,280.69 is: 12,807.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,991.06 : 22,067.79 = 9,280.69 : x
  2. Step 2: Convert to fraction form
    15,991.06/22,067.79 = 9,280.69/x
  3. Step 3: Cross multiply
    15,991.06x = 22,067.79 × 9,280.69
  4. Step 4: Simplify right side
    15,991.06x = 204,804,317.98
  5. Step 5: Solve for x
    x = 204,804,317.98/15,991.06
  6. Step 6: Final answer
    x = 12,807.43

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Similar ratio
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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.