Home / 19,669.89-27,144.11-10,717.46

Finding the Fourth Proportional to 19,669.89, 27,144.11 and 10,717.46

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Solution

The fourth proportional to 19,669.89, 27,144.11 and 10,717.46 is: 14,789.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.89 : 27,144.11 = 10,717.46 : x
  2. Step 2: Convert to fraction form
    19,669.89/27,144.11 = 10,717.46/x
  3. Step 3: Cross multiply
    19,669.89x = 27,144.11 × 10,717.46
  4. Step 4: Simplify right side
    19,669.89x = 290,915,723.85
  5. Step 5: Solve for x
    x = 290,915,723.85/19,669.89
  6. Step 6: Final answer
    x = 14,789.90

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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.