Home / 13,943.43-20,918.79-8,094.42

Finding the Fourth Proportional to 13,943.43, 20,918.79 and 8,094.42

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Solution

The fourth proportional to 13,943.43, 20,918.79 and 8,094.42 is: 12,143.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.43 : 20,918.79 = 8,094.42 : x
  2. Step 2: Convert to fraction form
    13,943.43/20,918.79 = 8,094.42/x
  3. Step 3: Cross multiply
    13,943.43x = 20,918.79 × 8,094.42
  4. Step 4: Simplify right side
    13,943.43x = 169,325,472.15
  5. Step 5: Solve for x
    x = 169,325,472.15/13,943.43
  6. Step 6: Final answer
    x = 12,143.75

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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.