Home / 9,383.45-12,949.00-5,191.70

Finding the Fourth Proportional to 9,383.45, 12,949.00 and 5,191.70

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Solution

The fourth proportional to 9,383.45, 12,949.00 and 5,191.70 is: 7,164.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,383.45 : 12,949.00 = 5,191.70 : x
  2. Step 2: Convert to fraction form
    9,383.45/12,949.00 = 5,191.70/x
  3. Step 3: Cross multiply
    9,383.45x = 12,949.00 × 5,191.70
  4. Step 4: Simplify right side
    9,383.45x = 67,227,245.58
  5. Step 5: Solve for x
    x = 67,227,245.58/9,383.45
  6. Step 6: Final answer
    x = 7,164.45

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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.