Home / 7,747.80-11,616.66-4,287.48

Finding the Fourth Proportional to 7,747.80, 11,616.66 and 4,287.48

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Solution

The fourth proportional to 7,747.80, 11,616.66 and 4,287.48 is: 6,428.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.80 : 11,616.66 = 4,287.48 : x
  2. Step 2: Convert to fraction form
    7,747.80/11,616.66 = 4,287.48/x
  3. Step 3: Cross multiply
    7,747.80x = 11,616.66 × 4,287.48
  4. Step 4: Simplify right side
    7,747.80x = 49,806,197.42
  5. Step 5: Solve for x
    x = 49,806,197.42/7,747.80
  6. Step 6: Final answer
    x = 6,428.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.