Home / 7,781.07-11,672.27-3,338.94

Finding the Fourth Proportional to 7,781.07, 11,672.27 and 3,338.94

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Solution

The fourth proportional to 7,781.07, 11,672.27 and 3,338.94 is: 5,008.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.07 : 11,672.27 = 3,338.94 : x
  2. Step 2: Convert to fraction form
    7,781.07/11,672.27 = 3,338.94/x
  3. Step 3: Cross multiply
    7,781.07x = 11,672.27 × 3,338.94
  4. Step 4: Simplify right side
    7,781.07x = 38,972,992.50
  5. Step 5: Solve for x
    x = 38,972,992.50/7,781.07
  6. Step 6: Final answer
    x = 5,008.69

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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.