Home / 12,649.44-17,455.20-7,272.74

Finding the Fourth Proportional to 12,649.44, 17,455.20 and 7,272.74

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Solution

The fourth proportional to 12,649.44, 17,455.20 and 7,272.74 is: 10,035.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,649.44 : 17,455.20 = 7,272.74 : x
  2. Step 2: Convert to fraction form
    12,649.44/17,455.20 = 7,272.74/x
  3. Step 3: Cross multiply
    12,649.44x = 17,455.20 × 7,272.74
  4. Step 4: Simplify right side
    12,649.44x = 126,947,131.25
  5. Step 5: Solve for x
    x = 126,947,131.25/12,649.44
  6. Step 6: Final answer
    x = 10,035.79

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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.