Home / 13,734.88-20,578.78-9,223.48

Finding the Fourth Proportional to 13,734.88, 20,578.78 and 9,223.48

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Solution

The fourth proportional to 13,734.88, 20,578.78 and 9,223.48 is: 13,819.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,734.88 : 20,578.78 = 9,223.48 : x
  2. Step 2: Convert to fraction form
    13,734.88/20,578.78 = 9,223.48/x
  3. Step 3: Cross multiply
    13,734.88x = 20,578.78 × 9,223.48
  4. Step 4: Simplify right side
    13,734.88x = 189,807,965.75
  5. Step 5: Solve for x
    x = 189,807,965.75/13,734.88
  6. Step 6: Final answer
    x = 13,819.41

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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.