Home / 11,239.89-16,859.82-3,031.89

Finding the Fourth Proportional to 11,239.89, 16,859.82 and 3,031.89

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Solution

The fourth proportional to 11,239.89, 16,859.82 and 3,031.89 is: 4,547.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.89 : 16,859.82 = 3,031.89 : x
  2. Step 2: Convert to fraction form
    11,239.89/16,859.82 = 3,031.89/x
  3. Step 3: Cross multiply
    11,239.89x = 16,859.82 × 3,031.89
  4. Step 4: Simplify right side
    11,239.89x = 51,117,119.66
  5. Step 5: Solve for x
    x = 51,117,119.66/11,239.89
  6. Step 6: Final answer
    x = 4,547.83

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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.