Home / 13,965.89-20,952.74-5,651.75

Finding the Fourth Proportional to 13,965.89, 20,952.74 and 5,651.75

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Solution

The fourth proportional to 13,965.89, 20,952.74 and 5,651.75 is: 8,479.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.89 : 20,952.74 = 5,651.75 : x
  2. Step 2: Convert to fraction form
    13,965.89/20,952.74 = 5,651.75/x
  3. Step 3: Cross multiply
    13,965.89x = 20,952.74 × 5,651.75
  4. Step 4: Simplify right side
    13,965.89x = 118,419,714.81
  5. Step 5: Solve for x
    x = 118,419,714.81/13,965.89
  6. Step 6: Final answer
    x = 8,479.21

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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.