Home / 18,905.62-26,086.71-11,350.75

Finding the Fourth Proportional to 18,905.62, 26,086.71 and 11,350.75

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Solution

The fourth proportional to 18,905.62, 26,086.71 and 11,350.75 is: 15,662.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905.62 : 26,086.71 = 11,350.75 : x
  2. Step 2: Convert to fraction form
    18,905.62/26,086.71 = 11,350.75/x
  3. Step 3: Cross multiply
    18,905.62x = 26,086.71 × 11,350.75
  4. Step 4: Simplify right side
    18,905.62x = 296,103,723.53
  5. Step 5: Solve for x
    x = 296,103,723.53/18,905.62
  6. Step 6: Final answer
    x = 15,662.21

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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.