Home / 9,867.53-13,616.79-5,391.44

Finding the Fourth Proportional to 9,867.53, 13,616.79 and 5,391.44

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Solution

The fourth proportional to 9,867.53, 13,616.79 and 5,391.44 is: 7,439.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,867.53 : 13,616.79 = 5,391.44 : x
  2. Step 2: Convert to fraction form
    9,867.53/13,616.79 = 5,391.44/x
  3. Step 3: Cross multiply
    9,867.53x = 13,616.79 × 5,391.44
  4. Step 4: Simplify right side
    9,867.53x = 73,414,106.28
  5. Step 5: Solve for x
    x = 73,414,106.28/9,867.53
  6. Step 6: Final answer
    x = 7,439.97

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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.