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Finding the Fourth Proportional to 8,965.77, 13,450.89 and 8,816.94

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Solution

The fourth proportional to 8,965.77, 13,450.89 and 8,816.94 is: 13,227.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.77 : 13,450.89 = 8,816.94 : x
  2. Step 2: Convert to fraction form
    8,965.77/13,450.89 = 8,816.94/x
  3. Step 3: Cross multiply
    8,965.77x = 13,450.89 × 8,816.94
  4. Step 4: Simplify right side
    8,965.77x = 118,595,690.08
  5. Step 5: Solve for x
    x = 118,595,690.08/8,965.77
  6. Step 6: Final answer
    x = 13,227.61

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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.