Home / 13,275.02-19,912.80-3,414.36

Finding the Fourth Proportional to 13,275.02, 19,912.80 and 3,414.36

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Solution

The fourth proportional to 13,275.02, 19,912.80 and 3,414.36 is: 5,121.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.02 : 19,912.80 = 3,414.36 : x
  2. Step 2: Convert to fraction form
    13,275.02/19,912.80 = 3,414.36/x
  3. Step 3: Cross multiply
    13,275.02x = 19,912.80 × 3,414.36
  4. Step 4: Simplify right side
    13,275.02x = 67,989,467.81
  5. Step 5: Solve for x
    x = 67,989,467.81/13,275.02
  6. Step 6: Final answer
    x = 5,121.61

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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.