Home / 9,912.24-14,868.36-3,991.86

Finding the Fourth Proportional to 9,912.24, 14,868.36 and 3,991.86

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Solution

The fourth proportional to 9,912.24, 14,868.36 and 3,991.86 is: 5,987.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,912.24 : 14,868.36 = 3,991.86 : x
  2. Step 2: Convert to fraction form
    9,912.24/14,868.36 = 3,991.86/x
  3. Step 3: Cross multiply
    9,912.24x = 14,868.36 × 3,991.86
  4. Step 4: Simplify right side
    9,912.24x = 59,352,411.55
  5. Step 5: Solve for x
    x = 59,352,411.55/9,912.24
  6. Step 6: Final answer
    x = 5,987.79

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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.