Home / 17,778.27-26,672.33-7,781.22

Finding the Fourth Proportional to 17,778.27, 26,672.33 and 7,781.22

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Solution

The fourth proportional to 17,778.27, 26,672.33 and 7,781.22 is: 11,673.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,778.27 : 26,672.33 = 7,781.22 : x
  2. Step 2: Convert to fraction form
    17,778.27/26,672.33 = 7,781.22/x
  3. Step 3: Cross multiply
    17,778.27x = 26,672.33 × 7,781.22
  4. Step 4: Simplify right side
    17,778.27x = 207,543,267.64
  5. Step 5: Solve for x
    x = 207,543,267.64/17,778.27
  6. Step 6: Final answer
    x = 11,673.99

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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.