Home / 13,069.30-19,571.10-10,149.64

Finding the Fourth Proportional to 13,069.30, 19,571.10 and 10,149.64

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Solution

The fourth proportional to 13,069.30, 19,571.10 and 10,149.64 is: 15,198.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,069.30 : 19,571.10 = 10,149.64 : x
  2. Step 2: Convert to fraction form
    13,069.30/19,571.10 = 10,149.64/x
  3. Step 3: Cross multiply
    13,069.30x = 19,571.10 × 10,149.64
  4. Step 4: Simplify right side
    13,069.30x = 198,639,619.40
  5. Step 5: Solve for x
    x = 198,639,619.40/13,069.30
  6. Step 6: Final answer
    x = 15,198.95

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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.