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Finding the Fourth Proportional to 8,850.74, 12,219.27 and 7,866.68

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Solution

The fourth proportional to 8,850.74, 12,219.27 and 7,866.68 is: 10,860.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,850.74 : 12,219.27 = 7,866.68 : x
  2. Step 2: Convert to fraction form
    8,850.74/12,219.27 = 7,866.68/x
  3. Step 3: Cross multiply
    8,850.74x = 12,219.27 × 7,866.68
  4. Step 4: Simplify right side
    8,850.74x = 96,125,086.92
  5. Step 5: Solve for x
    x = 96,125,086.92/8,850.74
  6. Step 6: Final answer
    x = 10,860.68

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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.