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Finding the Fourth Proportional to 16,223.70, 22,388.70 and 8,771.70

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Solution

The fourth proportional to 16,223.70, 22,388.70 and 8,771.70 is: 12,104.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,223.70 : 22,388.70 = 8,771.70 : x
  2. Step 2: Convert to fraction form
    16,223.70/22,388.70 = 8,771.70/x
  3. Step 3: Cross multiply
    16,223.70x = 22,388.70 × 8,771.70
  4. Step 4: Simplify right side
    16,223.70x = 196,386,959.79
  5. Step 5: Solve for x
    x = 196,386,959.79/16,223.70
  6. Step 6: Final answer
    x = 12,104.94

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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.