Home / 13,171.25-18,176.32-7,202.92

Finding the Fourth Proportional to 13,171.25, 18,176.32 and 7,202.92

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Solution

The fourth proportional to 13,171.25, 18,176.32 and 7,202.92 is: 9,940.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,171.25 : 18,176.32 = 7,202.92 : x
  2. Step 2: Convert to fraction form
    13,171.25/18,176.32 = 7,202.92/x
  3. Step 3: Cross multiply
    13,171.25x = 18,176.32 × 7,202.92
  4. Step 4: Simplify right side
    13,171.25x = 130,922,515.41
  5. Step 5: Solve for x
    x = 130,922,515.41/13,171.25
  6. Step 6: Final answer
    x = 9,940.02

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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.