Home / 13,481.49-20,229.07-9,089.72

Finding the Fourth Proportional to 13,481.49, 20,229.07 and 9,089.72

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Solution

The fourth proportional to 13,481.49, 20,229.07 and 9,089.72 is: 13,639.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481.49 : 20,229.07 = 9,089.72 : x
  2. Step 2: Convert to fraction form
    13,481.49/20,229.07 = 9,089.72/x
  3. Step 3: Cross multiply
    13,481.49x = 20,229.07 × 9,089.72
  4. Step 4: Simplify right side
    13,481.49x = 183,876,525.63
  5. Step 5: Solve for x
    x = 183,876,525.63/13,481.49
  6. Step 6: Final answer
    x = 13,639.19

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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.