Home / 8,728.48-13,098.28-3,181.28

Finding the Fourth Proportional to 8,728.48, 13,098.28 and 3,181.28

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Solution

The fourth proportional to 8,728.48, 13,098.28 and 3,181.28 is: 4,773.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.48 : 13,098.28 = 3,181.28 : x
  2. Step 2: Convert to fraction form
    8,728.48/13,098.28 = 3,181.28/x
  3. Step 3: Cross multiply
    8,728.48x = 13,098.28 × 3,181.28
  4. Step 4: Simplify right side
    8,728.48x = 41,669,296.20
  5. Step 5: Solve for x
    x = 41,669,296.20/8,728.48
  6. Step 6: Final answer
    x = 4,773.95

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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.