Home / 15,007.80-22,512.96-3,914.48

Finding the Fourth Proportional to 15,007.80, 22,512.96 and 3,914.48

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Solution

The fourth proportional to 15,007.80, 22,512.96 and 3,914.48 is: 5,872.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,007.80 : 22,512.96 = 3,914.48 : x
  2. Step 2: Convert to fraction form
    15,007.80/22,512.96 = 3,914.48/x
  3. Step 3: Cross multiply
    15,007.80x = 22,512.96 × 3,914.48
  4. Step 4: Simplify right side
    15,007.80x = 88,126,531.66
  5. Step 5: Solve for x
    x = 88,126,531.66/15,007.80
  6. Step 6: Final answer
    x = 5,872.05

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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.