Home / 13,674.97-18,862.09-8,372.41

Finding the Fourth Proportional to 13,674.97, 18,862.09 and 8,372.41

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Solution

The fourth proportional to 13,674.97, 18,862.09 and 8,372.41 is: 11,548.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,674.97 : 18,862.09 = 8,372.41 : x
  2. Step 2: Convert to fraction form
    13,674.97/18,862.09 = 8,372.41/x
  3. Step 3: Cross multiply
    13,674.97x = 18,862.09 × 8,372.41
  4. Step 4: Simplify right side
    13,674.97x = 157,921,082.85
  5. Step 5: Solve for x
    x = 157,921,082.85/13,674.97
  6. Step 6: Final answer
    x = 11,548.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.