Home / 11,851.83-17,780.67-3,531.81

Finding the Fourth Proportional to 11,851.83, 17,780.67 and 3,531.81

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Solution

The fourth proportional to 11,851.83, 17,780.67 and 3,531.81 is: 5,298.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,851.83 : 17,780.67 = 3,531.81 : x
  2. Step 2: Convert to fraction form
    11,851.83/17,780.67 = 3,531.81/x
  3. Step 3: Cross multiply
    11,851.83x = 17,780.67 × 3,531.81
  4. Step 4: Simplify right side
    11,851.83x = 62,797,948.11
  5. Step 5: Solve for x
    x = 62,797,948.11/11,851.83
  6. Step 6: Final answer
    x = 5,298.59

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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.