Home / 10,127.20-13,974.18-5,650.30

Finding the Fourth Proportional to 10,127.20, 13,974.18 and 5,650.30

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Solution

The fourth proportional to 10,127.20, 13,974.18 and 5,650.30 is: 7,796.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,127.20 : 13,974.18 = 5,650.30 : x
  2. Step 2: Convert to fraction form
    10,127.20/13,974.18 = 5,650.30/x
  3. Step 3: Cross multiply
    10,127.20x = 13,974.18 × 5,650.30
  4. Step 4: Simplify right side
    10,127.20x = 78,958,309.25
  5. Step 5: Solve for x
    x = 78,958,309.25/10,127.20
  6. Step 6: Final answer
    x = 7,796.66

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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.