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Finding the Fourth Proportional to 8,781.24, 13,163.54 and 2,933.62

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Solution

The fourth proportional to 8,781.24, 13,163.54 and 2,933.62 is: 4,397.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.24 : 13,163.54 = 2,933.62 : x
  2. Step 2: Convert to fraction form
    8,781.24/13,163.54 = 2,933.62/x
  3. Step 3: Cross multiply
    8,781.24x = 13,163.54 × 2,933.62
  4. Step 4: Simplify right side
    8,781.24x = 38,616,824.21
  5. Step 5: Solve for x
    x = 38,616,824.21/8,781.24
  6. Step 6: Final answer
    x = 4,397.65

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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.