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Finding the Fourth Proportional to 9,912.36, 14,791.94 and 8,807.94

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Solution

The fourth proportional to 9,912.36, 14,791.94 and 8,807.94 is: 13,143.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,912.36 : 14,791.94 = 8,807.94 : x
  2. Step 2: Convert to fraction form
    9,912.36/14,791.94 = 8,807.94/x
  3. Step 3: Cross multiply
    9,912.36x = 14,791.94 × 8,807.94
  4. Step 4: Simplify right side
    9,912.36x = 130,286,542.02
  5. Step 5: Solve for x
    x = 130,286,542.02/9,912.36
  6. Step 6: Final answer
    x = 13,143.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.