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Finding the Fourth Proportional to 8,758.40, 13,137.26 and 5,965.11

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Solution

The fourth proportional to 8,758.40, 13,137.26 and 5,965.11 is: 8,947.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.40 : 13,137.26 = 5,965.11 : x
  2. Step 2: Convert to fraction form
    8,758.40/13,137.26 = 5,965.11/x
  3. Step 3: Cross multiply
    8,758.40x = 13,137.26 × 5,965.11
  4. Step 4: Simplify right side
    8,758.40x = 78,365,171.17
  5. Step 5: Solve for x
    x = 78,365,171.17/8,758.40
  6. Step 6: Final answer
    x = 8,947.44

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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.