Home / 9,867.38-13,616.82-5,391.03

Finding the Fourth Proportional to 9,867.38, 13,616.82 and 5,391.03

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Solution

The fourth proportional to 9,867.38, 13,616.82 and 5,391.03 is: 7,439.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,867.38 : 13,616.82 = 5,391.03 : x
  2. Step 2: Convert to fraction form
    9,867.38/13,616.82 = 5,391.03/x
  3. Step 3: Cross multiply
    9,867.38x = 13,616.82 × 5,391.03
  4. Step 4: Simplify right side
    9,867.38x = 73,408,710.66
  5. Step 5: Solve for x
    x = 73,408,710.66/9,867.38
  6. Step 6: Final answer
    x = 7,439.54

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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.