Home / 18,778.77-25,906.62-10,816.26

Finding the Fourth Proportional to 18,778.77, 25,906.62 and 10,816.26

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Solution

The fourth proportional to 18,778.77, 25,906.62 and 10,816.26 is: 14,921.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,778.77 : 25,906.62 = 10,816.26 : x
  2. Step 2: Convert to fraction form
    18,778.77/25,906.62 = 10,816.26/x
  3. Step 3: Cross multiply
    18,778.77x = 25,906.62 × 10,816.26
  4. Step 4: Simplify right side
    18,778.77x = 280,212,737.64
  5. Step 5: Solve for x
    x = 280,212,737.64/18,778.77
  6. Step 6: Final answer
    x = 14,921.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.