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Finding the Fourth Proportional to 8,772.94, 13,150.54 and 3,778.57

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Solution

The fourth proportional to 8,772.94, 13,150.54 and 3,778.57 is: 5,664.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.94 : 13,150.54 = 3,778.57 : x
  2. Step 2: Convert to fraction form
    8,772.94/13,150.54 = 3,778.57/x
  3. Step 3: Cross multiply
    8,772.94x = 13,150.54 × 3,778.57
  4. Step 4: Simplify right side
    8,772.94x = 49,690,151.28
  5. Step 5: Solve for x
    x = 49,690,151.28/8,772.94
  6. Step 6: Final answer
    x = 5,664.03

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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.