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Finding the Fourth Proportional to 11,858.97, 17,749.85 and 8,737.73

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Solution

The fourth proportional to 11,858.97, 17,749.85 and 8,737.73 is: 13,078.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,858.97 : 17,749.85 = 8,737.73 : x
  2. Step 2: Convert to fraction form
    11,858.97/17,749.85 = 8,737.73/x
  3. Step 3: Cross multiply
    11,858.97x = 17,749.85 × 8,737.73
  4. Step 4: Simplify right side
    11,858.97x = 155,093,264.40
  5. Step 5: Solve for x
    x = 155,093,264.40/11,858.97
  6. Step 6: Final answer
    x = 13,078.14

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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.