Home / 8,721.72-13,084.07-3,182.81

Finding the Fourth Proportional to 8,721.72, 13,084.07 and 3,182.81

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Solution

The fourth proportional to 8,721.72, 13,084.07 and 3,182.81 is: 4,774.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.72 : 13,084.07 = 3,182.81 : x
  2. Step 2: Convert to fraction form
    8,721.72/13,084.07 = 3,182.81/x
  3. Step 3: Cross multiply
    8,721.72x = 13,084.07 × 3,182.81
  4. Step 4: Simplify right side
    8,721.72x = 41,644,027.50
  5. Step 5: Solve for x
    x = 41,644,027.50/8,721.72
  6. Step 6: Final answer
    x = 4,774.75

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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.