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Finding the Fourth Proportional to 16,210, 22,369.80 and 8,758

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Solution

The fourth proportional to 16,210, 22,369.80 and 8,758 is: 12,086.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,210 : 22,369.80 = 8,758 : x
  2. Step 2: Convert to fraction form
    16,210/22,369.80 = 8,758/x
  3. Step 3: Cross multiply
    16,210x = 22,369.80 × 8,758
  4. Step 4: Simplify right side
    16,210x = 195,914,708.40
  5. Step 5: Solve for x
    x = 195,914,708.40/16,210
  6. Step 6: Final answer
    x = 12,086.04

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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.