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Finding the Fourth Proportional to 16,318.50, 22,519.54 and 8,866.50

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Solution

The fourth proportional to 16,318.50, 22,519.54 and 8,866.50 is: 12,235.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,318.50 : 22,519.54 = 8,866.50 : x
  2. Step 2: Convert to fraction form
    16,318.50/22,519.54 = 8,866.50/x
  3. Step 3: Cross multiply
    16,318.50x = 22,519.54 × 8,866.50
  4. Step 4: Simplify right side
    16,318.50x = 199,669,501.41
  5. Step 5: Solve for x
    x = 199,669,501.41/16,318.50
  6. Step 6: Final answer
    x = 12,235.78

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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.