Home / 8,144.80-11,233.67-5,631.12

Finding the Fourth Proportional to 8,144.80, 11,233.67 and 5,631.12

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Solution

The fourth proportional to 8,144.80, 11,233.67 and 5,631.12 is: 7,766.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,144.80 : 11,233.67 = 5,631.12 : x
  2. Step 2: Convert to fraction form
    8,144.80/11,233.67 = 5,631.12/x
  3. Step 3: Cross multiply
    8,144.80x = 11,233.67 × 5,631.12
  4. Step 4: Simplify right side
    8,144.80x = 63,258,087.64
  5. Step 5: Solve for x
    x = 63,258,087.64/8,144.80
  6. Step 6: Final answer
    x = 7,766.69

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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.