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Finding the Fourth Proportional to 8,758.11, 13,130.07 and 5,977.79

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Solution

The fourth proportional to 8,758.11, 13,130.07 and 5,977.79 is: 8,961.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.11 : 13,130.07 = 5,977.79 : x
  2. Step 2: Convert to fraction form
    8,758.11/13,130.07 = 5,977.79/x
  3. Step 3: Cross multiply
    8,758.11x = 13,130.07 × 5,977.79
  4. Step 4: Simplify right side
    8,758.11x = 78,488,735.49
  5. Step 5: Solve for x
    x = 78,488,735.49/8,758.11
  6. Step 6: Final answer
    x = 8,961.83

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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.