Home / 17,878.11-26,806.79-6,778.75

Finding the Fourth Proportional to 17,878.11, 26,806.79 and 6,778.75

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Solution

The fourth proportional to 17,878.11, 26,806.79 and 6,778.75 is: 10,164.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,878.11 : 26,806.79 = 6,778.75 : x
  2. Step 2: Convert to fraction form
    17,878.11/26,806.79 = 6,778.75/x
  3. Step 3: Cross multiply
    17,878.11x = 26,806.79 × 6,778.75
  4. Step 4: Simplify right side
    17,878.11x = 181,716,404.85
  5. Step 5: Solve for x
    x = 181,716,404.85/17,878.11
  6. Step 6: Final answer
    x = 10,164.18

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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.