Home / 7,934.88-11,909.68-4,042.20

Finding the Fourth Proportional to 7,934.88, 11,909.68 and 4,042.20

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Solution

The fourth proportional to 7,934.88, 11,909.68 and 4,042.20 is: 6,067.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,934.88 : 11,909.68 = 4,042.20 : x
  2. Step 2: Convert to fraction form
    7,934.88/11,909.68 = 4,042.20/x
  3. Step 3: Cross multiply
    7,934.88x = 11,909.68 × 4,042.20
  4. Step 4: Simplify right side
    7,934.88x = 48,141,308.50
  5. Step 5: Solve for x
    x = 48,141,308.50/7,934.88
  6. Step 6: Final answer
    x = 6,067.05

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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.