Home / 10,007.89-15,015.26-3,772.21

Finding the Fourth Proportional to 10,007.89, 15,015.26 and 3,772.21

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Solution

The fourth proportional to 10,007.89, 15,015.26 and 3,772.21 is: 5,659.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,007.89 : 15,015.26 = 3,772.21 : x
  2. Step 2: Convert to fraction form
    10,007.89/15,015.26 = 3,772.21/x
  3. Step 3: Cross multiply
    10,007.89x = 15,015.26 × 3,772.21
  4. Step 4: Simplify right side
    10,007.89x = 56,640,713.92
  5. Step 5: Solve for x
    x = 56,640,713.92/10,007.89
  6. Step 6: Final answer
    x = 5,659.61

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1.5x scale

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.