Home / 16,187.43-22,340.78-9,115.23

Finding the Fourth Proportional to 16,187.43, 22,340.78 and 9,115.23

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Solution

The fourth proportional to 16,187.43, 22,340.78 and 9,115.23 is: 12,580.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,187.43 : 22,340.78 = 9,115.23 : x
  2. Step 2: Convert to fraction form
    16,187.43/22,340.78 = 9,115.23/x
  3. Step 3: Cross multiply
    16,187.43x = 22,340.78 × 9,115.23
  4. Step 4: Simplify right side
    16,187.43x = 203,641,348.08
  5. Step 5: Solve for x
    x = 203,641,348.08/16,187.43
  6. Step 6: Final answer
    x = 12,580.21

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Half scale
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Double scale
Find fourth proportional to 16,188.43, 22,342.16 and 9,116.23
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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.