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Finding the Fourth Proportional to 22,661.79, 33,993.09 and 7,871.19

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Solution

The fourth proportional to 22,661.79, 33,993.09 and 7,871.19 is: 11,806.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,661.79 : 33,993.09 = 7,871.19 : x
  2. Step 2: Convert to fraction form
    22,661.79/33,993.09 = 7,871.19/x
  3. Step 3: Cross multiply
    22,661.79x = 33,993.09 × 7,871.19
  4. Step 4: Simplify right side
    22,661.79x = 267,566,070.08
  5. Step 5: Solve for x
    x = 267,566,070.08/22,661.79
  6. Step 6: Final answer
    x = 11,806.93

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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.