Home / 7,487.74-11,231.59-3,326.78

Finding the Fourth Proportional to 7,487.74, 11,231.59 and 3,326.78

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Solution

The fourth proportional to 7,487.74, 11,231.59 and 3,326.78 is: 4,990.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.74 : 11,231.59 = 3,326.78 : x
  2. Step 2: Convert to fraction form
    7,487.74/11,231.59 = 3,326.78/x
  3. Step 3: Cross multiply
    7,487.74x = 11,231.59 × 3,326.78
  4. Step 4: Simplify right side
    7,487.74x = 37,365,028.98
  5. Step 5: Solve for x
    x = 37,365,028.98/7,487.74
  6. Step 6: Final answer
    x = 4,990.16

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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.