Home / 13,272.57-19,909.80-3,912.48

Finding the Fourth Proportional to 13,272.57, 19,909.80 and 3,912.48

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Solution

The fourth proportional to 13,272.57, 19,909.80 and 3,912.48 is: 5,869.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.57 : 19,909.80 = 3,912.48 : x
  2. Step 2: Convert to fraction form
    13,272.57/19,909.80 = 3,912.48/x
  3. Step 3: Cross multiply
    13,272.57x = 19,909.80 × 3,912.48
  4. Step 4: Simplify right side
    13,272.57x = 77,896,694.30
  5. Step 5: Solve for x
    x = 77,896,694.30/13,272.57
  6. Step 6: Final answer
    x = 5,869.00

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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.