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Finding the Fourth Proportional to 9,258.68, 12,777 and 5,067.20

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Solution

The fourth proportional to 9,258.68, 12,777 and 5,067.20 is: 6,992.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,258.68 : 12,777 = 5,067.20 : x
  2. Step 2: Convert to fraction form
    9,258.68/12,777 = 5,067.20/x
  3. Step 3: Cross multiply
    9,258.68x = 12,777 × 5,067.20
  4. Step 4: Simplify right side
    9,258.68x = 64,743,614.40
  5. Step 5: Solve for x
    x = 64,743,614.40/9,258.68
  6. Step 6: Final answer
    x = 6,992.75

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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.