Home / 12,647.73-18,956.80-9,517.71

Finding the Fourth Proportional to 12,647.73, 18,956.80 and 9,517.71

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Solution

The fourth proportional to 12,647.73, 18,956.80 and 9,517.71 is: 14,265.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,647.73 : 18,956.80 = 9,517.71 : x
  2. Step 2: Convert to fraction form
    12,647.73/18,956.80 = 9,517.71/x
  3. Step 3: Cross multiply
    12,647.73x = 18,956.80 × 9,517.71
  4. Step 4: Simplify right side
    12,647.73x = 180,425,324.93
  5. Step 5: Solve for x
    x = 180,425,324.93/12,647.73
  6. Step 6: Final answer
    x = 14,265.43

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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.