Home / 15,441.82-21,294.09-13,734.92

Finding the Fourth Proportional to 15,441.82, 21,294.09 and 13,734.92

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Solution

The fourth proportional to 15,441.82, 21,294.09 and 13,734.92 is: 18,940.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,441.82 : 21,294.09 = 13,734.92 : x
  2. Step 2: Convert to fraction form
    15,441.82/21,294.09 = 13,734.92/x
  3. Step 3: Cross multiply
    15,441.82x = 21,294.09 × 13,734.92
  4. Step 4: Simplify right side
    15,441.82x = 292,472,675.86
  5. Step 5: Solve for x
    x = 292,472,675.86/15,441.82
  6. Step 6: Final answer
    x = 18,940.30

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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.