Home / 16,101.08-22,220.46-12,115.10

Finding the Fourth Proportional to 16,101.08, 22,220.46 and 12,115.10

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Solution

The fourth proportional to 16,101.08, 22,220.46 and 12,115.10 is: 16,719.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,101.08 : 22,220.46 = 12,115.10 : x
  2. Step 2: Convert to fraction form
    16,101.08/22,220.46 = 12,115.10/x
  3. Step 3: Cross multiply
    16,101.08x = 22,220.46 × 12,115.10
  4. Step 4: Simplify right side
    16,101.08x = 269,203,094.95
  5. Step 5: Solve for x
    x = 269,203,094.95/16,101.08
  6. Step 6: Final answer
    x = 16,719.57

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Half scale
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Double scale
Find fourth proportional to 16,102.08, 22,221.84 and 12,116.10
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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.