Home / 16,220.15-22,383.12-9,147.23

Finding the Fourth Proportional to 16,220.15, 22,383.12 and 9,147.23

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Solution

The fourth proportional to 16,220.15, 22,383.12 and 9,147.23 is: 12,622.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,220.15 : 22,383.12 = 9,147.23 : x
  2. Step 2: Convert to fraction form
    16,220.15/22,383.12 = 9,147.23/x
  3. Step 3: Cross multiply
    16,220.15x = 22,383.12 × 9,147.23
  4. Step 4: Simplify right side
    16,220.15x = 204,743,389.11
  5. Step 5: Solve for x
    x = 204,743,389.11/16,220.15
  6. Step 6: Final answer
    x = 12,622.78

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Half scale
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Double scale
Find fourth proportional to 16,221.15, 22,384.49 and 9,148.23
Similar ratio
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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.