Home / 8,211.65-12,309.57-3,016.31

Finding the Fourth Proportional to 8,211.65, 12,309.57 and 3,016.31

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Solution

The fourth proportional to 8,211.65, 12,309.57 and 3,016.31 is: 4,521.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,211.65 : 12,309.57 = 3,016.31 : x
  2. Step 2: Convert to fraction form
    8,211.65/12,309.57 = 3,016.31/x
  3. Step 3: Cross multiply
    8,211.65x = 12,309.57 × 3,016.31
  4. Step 4: Simplify right side
    8,211.65x = 37,129,417.54
  5. Step 5: Solve for x
    x = 37,129,417.54/8,211.65
  6. Step 6: Final answer
    x = 4,521.56

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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.