Home / 13,252.20-19,878.28-3,391.16

Finding the Fourth Proportional to 13,252.20, 19,878.28 and 3,391.16

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Solution

The fourth proportional to 13,252.20, 19,878.28 and 3,391.16 is: 5,086.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,252.20 : 19,878.28 = 3,391.16 : x
  2. Step 2: Convert to fraction form
    13,252.20/19,878.28 = 3,391.16/x
  3. Step 3: Cross multiply
    13,252.20x = 19,878.28 × 3,391.16
  4. Step 4: Simplify right side
    13,252.20x = 67,410,428.00
  5. Step 5: Solve for x
    x = 67,410,428.00/13,252.20
  6. Step 6: Final answer
    x = 5,086.73

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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.