Home / 13,193.11-18,206.55-7,224.82

Finding the Fourth Proportional to 13,193.11, 18,206.55 and 7,224.82

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Solution

The fourth proportional to 13,193.11, 18,206.55 and 7,224.82 is: 9,970.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,193.11 : 18,206.55 = 7,224.82 : x
  2. Step 2: Convert to fraction form
    13,193.11/18,206.55 = 7,224.82/x
  3. Step 3: Cross multiply
    13,193.11x = 18,206.55 × 7,224.82
  4. Step 4: Simplify right side
    13,193.11x = 131,539,046.57
  5. Step 5: Solve for x
    x = 131,539,046.57/13,193.11
  6. Step 6: Final answer
    x = 9,970.28

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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.