Home / 15,340.25-21,169.14-8,626.16

Finding the Fourth Proportional to 15,340.25, 21,169.14 and 8,626.16

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Solution

The fourth proportional to 15,340.25, 21,169.14 and 8,626.16 is: 11,903.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,340.25 : 21,169.14 = 8,626.16 : x
  2. Step 2: Convert to fraction form
    15,340.25/21,169.14 = 8,626.16/x
  3. Step 3: Cross multiply
    15,340.25x = 21,169.14 × 8,626.16
  4. Step 4: Simplify right side
    15,340.25x = 182,608,388.70
  5. Step 5: Solve for x
    x = 182,608,388.70/15,340.25
  6. Step 6: Final answer
    x = 11,903.87

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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.