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Finding the Fourth Proportional to 15,187.82, 22,781.94 and 5,327.39

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Solution

The fourth proportional to 15,187.82, 22,781.94 and 5,327.39 is: 7,991.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,187.82 : 22,781.94 = 5,327.39 : x
  2. Step 2: Convert to fraction form
    15,187.82/22,781.94 = 5,327.39/x
  3. Step 3: Cross multiply
    15,187.82x = 22,781.94 × 5,327.39
  4. Step 4: Simplify right side
    15,187.82x = 121,368,336.29
  5. Step 5: Solve for x
    x = 121,368,336.29/15,187.82
  6. Step 6: Final answer
    x = 7,991.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.