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Finding the Fourth Proportional to 9,767.93, 13,480.97 and 5,519.20

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Solution

The fourth proportional to 9,767.93, 13,480.97 and 5,519.20 is: 7,617.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,767.93 : 13,480.97 = 5,519.20 : x
  2. Step 2: Convert to fraction form
    9,767.93/13,480.97 = 5,519.20/x
  3. Step 3: Cross multiply
    9,767.93x = 13,480.97 × 5,519.20
  4. Step 4: Simplify right side
    9,767.93x = 74,404,169.62
  5. Step 5: Solve for x
    x = 74,404,169.62/9,767.93
  6. Step 6: Final answer
    x = 7,617.19

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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.