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Finding the Fourth Proportional to 13,101.14, 18,081.02 and 8,064.36

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Solution

The fourth proportional to 13,101.14, 18,081.02 and 8,064.36 is: 11,129.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101.14 : 18,081.02 = 8,064.36 : x
  2. Step 2: Convert to fraction form
    13,101.14/18,081.02 = 8,064.36/x
  3. Step 3: Cross multiply
    13,101.14x = 18,081.02 × 8,064.36
  4. Step 4: Simplify right side
    13,101.14x = 145,811,874.61
  5. Step 5: Solve for x
    x = 145,811,874.61/13,101.14
  6. Step 6: Final answer
    x = 11,129.71

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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.