Home / 18,679.64-25,777.32-10,722.02

Finding the Fourth Proportional to 18,679.64, 25,777.32 and 10,722.02

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Solution

The fourth proportional to 18,679.64, 25,777.32 and 10,722.02 is: 14,796.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,679.64 : 25,777.32 = 10,722.02 : x
  2. Step 2: Convert to fraction form
    18,679.64/25,777.32 = 10,722.02/x
  3. Step 3: Cross multiply
    18,679.64x = 25,777.32 × 10,722.02
  4. Step 4: Simplify right side
    18,679.64x = 276,384,940.59
  5. Step 5: Solve for x
    x = 276,384,940.59/18,679.64
  6. Step 6: Final answer
    x = 14,796.05

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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.