Home / 16,112.38-22,245.42-13,135.36

Finding the Fourth Proportional to 16,112.38, 22,245.42 and 13,135.36

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Solution

The fourth proportional to 16,112.38, 22,245.42 and 13,135.36 is: 18,135.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,112.38 : 22,245.42 = 13,135.36 : x
  2. Step 2: Convert to fraction form
    16,112.38/22,245.42 = 13,135.36/x
  3. Step 3: Cross multiply
    16,112.38x = 22,245.42 × 13,135.36
  4. Step 4: Simplify right side
    16,112.38x = 292,201,600.05
  5. Step 5: Solve for x
    x = 292,201,600.05/16,112.38
  6. Step 6: Final answer
    x = 18,135.22

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Half scale
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Double scale
Find fourth proportional to 16,113.38, 22,246.80 and 13,136.36
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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.