Home / 10,126.19-13,974.09-5,649.95

Finding the Fourth Proportional to 10,126.19, 13,974.09 and 5,649.95

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Solution

The fourth proportional to 10,126.19, 13,974.09 and 5,649.95 is: 7,796.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,126.19 : 13,974.09 = 5,649.95 : x
  2. Step 2: Convert to fraction form
    10,126.19/13,974.09 = 5,649.95/x
  3. Step 3: Cross multiply
    10,126.19x = 13,974.09 × 5,649.95
  4. Step 4: Simplify right side
    10,126.19x = 78,952,839.93
  5. Step 5: Solve for x
    x = 78,952,839.93/10,126.19
  6. Step 6: Final answer
    x = 7,796.90

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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.