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Finding the Fourth Proportional to 7,197.80, 9,932.22 and 6,668.66

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Solution

The fourth proportional to 7,197.80, 9,932.22 and 6,668.66 is: 9,202.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,197.80 : 9,932.22 = 6,668.66 : x
  2. Step 2: Convert to fraction form
    7,197.80/9,932.22 = 6,668.66/x
  3. Step 3: Cross multiply
    7,197.80x = 9,932.22 × 6,668.66
  4. Step 4: Simplify right side
    7,197.80x = 66,234,598.23
  5. Step 5: Solve for x
    x = 66,234,598.23/7,197.80
  6. Step 6: Final answer
    x = 9,202.06

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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.