Home / 13,173.92-18,180.36-7,205.92

Finding the Fourth Proportional to 13,173.92, 18,180.36 and 7,205.92

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Solution

The fourth proportional to 13,173.92, 18,180.36 and 7,205.92 is: 9,944.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173.92 : 18,180.36 = 7,205.92 : x
  2. Step 2: Convert to fraction form
    13,173.92/18,180.36 = 7,205.92/x
  3. Step 3: Cross multiply
    13,173.92x = 18,180.36 × 7,205.92
  4. Step 4: Simplify right side
    13,173.92x = 131,006,219.73
  5. Step 5: Solve for x
    x = 131,006,219.73/13,173.92
  6. Step 6: Final answer
    x = 9,944.36

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Half scale
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Double scale
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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.