Home / 17,778.94-26,722.41-11,876.78

Finding the Fourth Proportional to 17,778.94, 26,722.41 and 11,876.78

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Solution

The fourth proportional to 17,778.94, 26,722.41 and 11,876.78 is: 17,851.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,778.94 : 26,722.41 = 11,876.78 : x
  2. Step 2: Convert to fraction form
    17,778.94/26,722.41 = 11,876.78/x
  3. Step 3: Cross multiply
    17,778.94x = 26,722.41 × 11,876.78
  4. Step 4: Simplify right side
    17,778.94x = 317,376,056.59
  5. Step 5: Solve for x
    x = 317,376,056.59/17,778.94
  6. Step 6: Final answer
    x = 17,851.23

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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.