Home / 8,386.74-12,579.91-3,452.96

Finding the Fourth Proportional to 8,386.74, 12,579.91 and 3,452.96

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Solution

The fourth proportional to 8,386.74, 12,579.91 and 3,452.96 is: 5,179.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,386.74 : 12,579.91 = 3,452.96 : x
  2. Step 2: Convert to fraction form
    8,386.74/12,579.91 = 3,452.96/x
  3. Step 3: Cross multiply
    8,386.74x = 12,579.91 × 3,452.96
  4. Step 4: Simplify right side
    8,386.74x = 43,437,948.85
  5. Step 5: Solve for x
    x = 43,437,948.85/8,386.74
  6. Step 6: Final answer
    x = 5,179.36

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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.