Home / 7,965.15-10,991.48-4,380.04

Finding the Fourth Proportional to 7,965.15, 10,991.48 and 4,380.04

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Solution

The fourth proportional to 7,965.15, 10,991.48 and 4,380.04 is: 6,044.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.15 : 10,991.48 = 4,380.04 : x
  2. Step 2: Convert to fraction form
    7,965.15/10,991.48 = 4,380.04/x
  3. Step 3: Cross multiply
    7,965.15x = 10,991.48 × 4,380.04
  4. Step 4: Simplify right side
    7,965.15x = 48,143,067.10
  5. Step 5: Solve for x
    x = 48,143,067.10/7,965.15
  6. Step 6: Final answer
    x = 6,044.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.