Home / 9,185.32-13,777.98-3,988.36

Finding the Fourth Proportional to 9,185.32, 13,777.98 and 3,988.36

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Solution

The fourth proportional to 9,185.32, 13,777.98 and 3,988.36 is: 5,982.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,185.32 : 13,777.98 = 3,988.36 : x
  2. Step 2: Convert to fraction form
    9,185.32/13,777.98 = 3,988.36/x
  3. Step 3: Cross multiply
    9,185.32x = 13,777.98 × 3,988.36
  4. Step 4: Simplify right side
    9,185.32x = 54,951,544.31
  5. Step 5: Solve for x
    x = 54,951,544.31/9,185.32
  6. Step 6: Final answer
    x = 5,982.54

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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.