Home / 9,185.02-13,777.23-3,990.90

Finding the Fourth Proportional to 9,185.02, 13,777.23 and 3,990.90

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Solution

The fourth proportional to 9,185.02, 13,777.23 and 3,990.90 is: 5,986.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,185.02 : 13,777.23 = 3,990.90 : x
  2. Step 2: Convert to fraction form
    9,185.02/13,777.23 = 3,990.90/x
  3. Step 3: Cross multiply
    9,185.02x = 13,777.23 × 3,990.90
  4. Step 4: Simplify right side
    9,185.02x = 54,983,512.76
  5. Step 5: Solve for x
    x = 54,983,512.76/9,185.02
  6. Step 6: Final answer
    x = 5,986.21

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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.