Home / 9,382.25-12,947.51-5,191.13

Finding the Fourth Proportional to 9,382.25, 12,947.51 and 5,191.13

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Solution

The fourth proportional to 9,382.25, 12,947.51 and 5,191.13 is: 7,163.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,382.25 : 12,947.51 = 5,191.13 : x
  2. Step 2: Convert to fraction form
    9,382.25/12,947.51 = 5,191.13/x
  3. Step 3: Cross multiply
    9,382.25x = 12,947.51 × 5,191.13
  4. Step 4: Simplify right side
    9,382.25x = 67,212,207.59
  5. Step 5: Solve for x
    x = 67,212,207.59/9,382.25
  6. Step 6: Final answer
    x = 7,163.76

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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.