Home / 10,127.80-15,190.98-2,732.68

Finding the Fourth Proportional to 10,127.80, 15,190.98 and 2,732.68

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Solution

The fourth proportional to 10,127.80, 15,190.98 and 2,732.68 is: 4,098.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,127.80 : 15,190.98 = 2,732.68 : x
  2. Step 2: Convert to fraction form
    10,127.80/15,190.98 = 2,732.68/x
  3. Step 3: Cross multiply
    10,127.80x = 15,190.98 × 2,732.68
  4. Step 4: Simplify right side
    10,127.80x = 41,512,087.23
  5. Step 5: Solve for x
    x = 41,512,087.23/10,127.80
  6. Step 6: Final answer
    x = 4,098.83

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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.