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Finding the Fourth Proportional to 8,850.71, 12,213.67 and 4,871.45

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Solution

The fourth proportional to 8,850.71, 12,213.67 and 4,871.45 is: 6,722.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,850.71 : 12,213.67 = 4,871.45 : x
  2. Step 2: Convert to fraction form
    8,850.71/12,213.67 = 4,871.45/x
  3. Step 3: Cross multiply
    8,850.71x = 12,213.67 × 4,871.45
  4. Step 4: Simplify right side
    8,850.71x = 59,498,282.72
  5. Step 5: Solve for x
    x = 59,498,282.72/8,850.71
  6. Step 6: Final answer
    x = 6,722.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.