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Finding the Fourth Proportional to 8,967.15, 13,450.73 and 8,909.55

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Solution

The fourth proportional to 8,967.15, 13,450.73 and 8,909.55 is: 13,364.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,967.15 : 13,450.73 = 8,909.55 : x
  2. Step 2: Convert to fraction form
    8,967.15/13,450.73 = 8,909.55/x
  3. Step 3: Cross multiply
    8,967.15x = 13,450.73 × 8,909.55
  4. Step 4: Simplify right side
    8,967.15x = 119,839,906.92
  5. Step 5: Solve for x
    x = 119,839,906.92/8,967.15
  6. Step 6: Final answer
    x = 13,364.33

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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.