Home / 12,117.38-18,087.66-10,641.14

Finding the Fourth Proportional to 12,117.38, 18,087.66 and 10,641.14

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Solution

The fourth proportional to 12,117.38, 18,087.66 and 10,641.14 is: 15,884.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117.38 : 18,087.66 = 10,641.14 : x
  2. Step 2: Convert to fraction form
    12,117.38/18,087.66 = 10,641.14/x
  3. Step 3: Cross multiply
    12,117.38x = 18,087.66 × 10,641.14
  4. Step 4: Simplify right side
    12,117.38x = 192,473,322.33
  5. Step 5: Solve for x
    x = 192,473,322.33/12,117.38
  6. Step 6: Final answer
    x = 15,884.07

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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 (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.