Home / 10,933.20-15,067.80-7,943.80

Finding the Fourth Proportional to 10,933.20, 15,067.80 and 7,943.80

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Solution

The fourth proportional to 10,933.20, 15,067.80 and 7,943.80 is: 10,947.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,933.20 : 15,067.80 = 7,943.80 : x
  2. Step 2: Convert to fraction form
    10,933.20/15,067.80 = 7,943.80/x
  3. Step 3: Cross multiply
    10,933.20x = 15,067.80 × 7,943.80
  4. Step 4: Simplify right side
    10,933.20x = 119,695,589.64
  5. Step 5: Solve for x
    x = 119,695,589.64/10,933.20
  6. Step 6: Final answer
    x = 10,947.90

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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.