Home / 13,736.88-20,581.78-9,225.48

Finding the Fourth Proportional to 13,736.88, 20,581.78 and 9,225.48

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Solution

The fourth proportional to 13,736.88, 20,581.78 and 9,225.48 is: 13,822.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,736.88 : 20,581.78 = 9,225.48 : x
  2. Step 2: Convert to fraction form
    13,736.88/20,581.78 = 9,225.48/x
  3. Step 3: Cross multiply
    13,736.88x = 20,581.78 × 9,225.48
  4. Step 4: Simplify right side
    13,736.88x = 189,876,799.75
  5. Step 5: Solve for x
    x = 189,876,799.75/13,736.88
  6. Step 6: Final answer
    x = 13,822.41

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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.