Home / 13,229.78-19,851.16-5,331.96

Finding the Fourth Proportional to 13,229.78, 19,851.16 and 5,331.96

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Solution

The fourth proportional to 13,229.78, 19,851.16 and 5,331.96 is: 8,000.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,229.78 : 19,851.16 = 5,331.96 : x
  2. Step 2: Convert to fraction form
    13,229.78/19,851.16 = 5,331.96/x
  3. Step 3: Cross multiply
    13,229.78x = 19,851.16 × 5,331.96
  4. Step 4: Simplify right side
    13,229.78x = 105,845,591.07
  5. Step 5: Solve for x
    x = 105,845,591.07/13,229.78
  6. Step 6: Final answer
    x = 8,000.56

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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.