Home / 13,247.97-19,872.67-3,387.34

Finding the Fourth Proportional to 13,247.97, 19,872.67 and 3,387.34

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Solution

The fourth proportional to 13,247.97, 19,872.67 and 3,387.34 is: 5,081.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.97 : 19,872.67 = 3,387.34 : x
  2. Step 2: Convert to fraction form
    13,247.97/19,872.67 = 3,387.34/x
  3. Step 3: Cross multiply
    13,247.97x = 19,872.67 × 3,387.34
  4. Step 4: Simplify right side
    13,247.97x = 67,315,390.63
  5. Step 5: Solve for x
    x = 67,315,390.63/13,247.97
  6. Step 6: Final answer
    x = 5,081.19

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1.5x scale

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.