Home / 10,126.26-13,972.56-5,649.86

Finding the Fourth Proportional to 10,126.26, 13,972.56 and 5,649.86

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Solution

The fourth proportional to 10,126.26, 13,972.56 and 5,649.86 is: 7,795.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,126.26 : 13,972.56 = 5,649.86 : x
  2. Step 2: Convert to fraction form
    10,126.26/13,972.56 = 5,649.86/x
  3. Step 3: Cross multiply
    10,126.26x = 13,972.56 × 5,649.86
  4. Step 4: Simplify right side
    10,126.26x = 78,943,007.84
  5. Step 5: Solve for x
    x = 78,943,007.84/10,126.26
  6. Step 6: Final answer
    x = 7,795.87

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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.