Home / 8,806.72-13,211.81-3,260.11

Finding the Fourth Proportional to 8,806.72, 13,211.81 and 3,260.11

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Solution

The fourth proportional to 8,806.72, 13,211.81 and 3,260.11 is: 4,890.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806.72 : 13,211.81 = 3,260.11 : x
  2. Step 2: Convert to fraction form
    8,806.72/13,211.81 = 3,260.11/x
  3. Step 3: Cross multiply
    8,806.72x = 13,211.81 × 3,260.11
  4. Step 4: Simplify right side
    8,806.72x = 43,071,953.90
  5. Step 5: Solve for x
    x = 43,071,953.90/8,806.72
  6. Step 6: Final answer
    x = 4,890.81

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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.