Home / 12,227.37-16,877.79-7,191.38

Finding the Fourth Proportional to 12,227.37, 16,877.79 and 7,191.38

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Solution

The fourth proportional to 12,227.37, 16,877.79 and 7,191.38 is: 9,926.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,227.37 : 16,877.79 = 7,191.38 : x
  2. Step 2: Convert to fraction form
    12,227.37/16,877.79 = 7,191.38/x
  3. Step 3: Cross multiply
    12,227.37x = 16,877.79 × 7,191.38
  4. Step 4: Simplify right side
    12,227.37x = 121,374,517.06
  5. Step 5: Solve for x
    x = 121,374,517.06/12,227.37
  6. Step 6: Final answer
    x = 9,926.46

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Double scale
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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.