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Finding the Fourth Proportional to 8,892.97, 12,258.57 and 6,651.43

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Solution

The fourth proportional to 8,892.97, 12,258.57 and 6,651.43 is: 9,168.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,892.97 : 12,258.57 = 6,651.43 : x
  2. Step 2: Convert to fraction form
    8,892.97/12,258.57 = 6,651.43/x
  3. Step 3: Cross multiply
    8,892.97x = 12,258.57 × 6,651.43
  4. Step 4: Simplify right side
    8,892.97x = 81,537,020.26
  5. Step 5: Solve for x
    x = 81,537,020.26/8,892.97
  6. Step 6: Final answer
    x = 9,168.71

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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.