Home / 13,186.92-18,197.24-7,217.43

Finding the Fourth Proportional to 13,186.92, 18,197.24 and 7,217.43

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Solution

The fourth proportional to 13,186.92, 18,197.24 and 7,217.43 is: 9,959.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.92 : 18,197.24 = 7,217.43 : x
  2. Step 2: Convert to fraction form
    13,186.92/18,197.24 = 7,217.43/x
  3. Step 3: Cross multiply
    13,186.92x = 18,197.24 × 7,217.43
  4. Step 4: Simplify right side
    13,186.92x = 131,337,269.81
  5. Step 5: Solve for x
    x = 131,337,269.81/13,186.92
  6. Step 6: Final answer
    x = 9,959.66

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Half scale
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Double scale
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Similar ratio
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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.