Home / 18,936.50-26,132.90-11,670.19

Finding the Fourth Proportional to 18,936.50, 26,132.90 and 11,670.19

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Solution

The fourth proportional to 18,936.50, 26,132.90 and 11,670.19 is: 16,105.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936.50 : 26,132.90 = 11,670.19 : x
  2. Step 2: Convert to fraction form
    18,936.50/26,132.90 = 11,670.19/x
  3. Step 3: Cross multiply
    18,936.50x = 26,132.90 × 11,670.19
  4. Step 4: Simplify right side
    18,936.50x = 304,975,919.78
  5. Step 5: Solve for x
    x = 304,975,919.78/18,936.50
  6. Step 6: Final answer
    x = 16,105.19

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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.