Home / 11,851.15-17,779.28-3,531.83

Finding the Fourth Proportional to 11,851.15, 17,779.28 and 3,531.83

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Solution

The fourth proportional to 11,851.15, 17,779.28 and 3,531.83 is: 5,298.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,851.15 : 17,779.28 = 3,531.83 : x
  2. Step 2: Convert to fraction form
    11,851.15/17,779.28 = 3,531.83/x
  3. Step 3: Cross multiply
    11,851.15x = 17,779.28 × 3,531.83
  4. Step 4: Simplify right side
    11,851.15x = 62,793,485.21
  5. Step 5: Solve for x
    x = 62,793,485.21/11,851.15
  6. Step 6: Final answer
    x = 5,298.51

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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.