Home / 10,120.43-15,180.66-2,725.64

Finding the Fourth Proportional to 10,120.43, 15,180.66 and 2,725.64

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Solution

The fourth proportional to 10,120.43, 15,180.66 and 2,725.64 is: 4,088.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.43 : 15,180.66 = 2,725.64 : x
  2. Step 2: Convert to fraction form
    10,120.43/15,180.66 = 2,725.64/x
  3. Step 3: Cross multiply
    10,120.43x = 15,180.66 × 2,725.64
  4. Step 4: Simplify right side
    10,120.43x = 41,377,014.12
  5. Step 5: Solve for x
    x = 41,377,014.12/10,120.43
  6. Step 6: Final answer
    x = 4,088.46

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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.