Home / 11,818.29-17,731.53-5,249.09

Finding the Fourth Proportional to 11,818.29, 17,731.53 and 5,249.09

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Solution

The fourth proportional to 11,818.29, 17,731.53 and 5,249.09 is: 7,875.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.29 : 17,731.53 = 5,249.09 : x
  2. Step 2: Convert to fraction form
    11,818.29/17,731.53 = 5,249.09/x
  3. Step 3: Cross multiply
    11,818.29x = 17,731.53 × 5,249.09
  4. Step 4: Simplify right side
    11,818.29x = 93,074,308.15
  5. Step 5: Solve for x
    x = 93,074,308.15/11,818.29
  6. Step 6: Final answer
    x = 7,875.45

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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.