Home / 18,180.33-27,242.55-10,770.05

Finding the Fourth Proportional to 18,180.33, 27,242.55 and 10,770.05

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Solution

The fourth proportional to 18,180.33, 27,242.55 and 10,770.05 is: 16,138.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,180.33 : 27,242.55 = 10,770.05 : x
  2. Step 2: Convert to fraction form
    18,180.33/27,242.55 = 10,770.05/x
  3. Step 3: Cross multiply
    18,180.33x = 27,242.55 × 10,770.05
  4. Step 4: Simplify right side
    18,180.33x = 293,403,489.41
  5. Step 5: Solve for x
    x = 293,403,489.41/18,180.33
  6. Step 6: Final answer
    x = 16,138.51

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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.