Home / 18,789.18-25,927.53-10,722.80

Finding the Fourth Proportional to 18,789.18, 25,927.53 and 10,722.80

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Solution

The fourth proportional to 18,789.18, 25,927.53 and 10,722.80 is: 14,796.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.18 : 25,927.53 = 10,722.80 : x
  2. Step 2: Convert to fraction form
    18,789.18/25,927.53 = 10,722.80/x
  3. Step 3: Cross multiply
    18,789.18x = 25,927.53 × 10,722.80
  4. Step 4: Simplify right side
    18,789.18x = 278,015,589.05
  5. Step 5: Solve for x
    x = 278,015,589.05/18,789.18
  6. Step 6: Final answer
    x = 14,796.58

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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.