Home / 13,936.43-20,908.29-8,087.42

Finding the Fourth Proportional to 13,936.43, 20,908.29 and 8,087.42

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Solution

The fourth proportional to 13,936.43, 20,908.29 and 8,087.42 is: 12,133.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,936.43 : 20,908.29 = 8,087.42 : x
  2. Step 2: Convert to fraction form
    13,936.43/20,908.29 = 8,087.42/x
  3. Step 3: Cross multiply
    13,936.43x = 20,908.29 × 8,087.42
  4. Step 4: Simplify right side
    13,936.43x = 169,094,122.71
  5. Step 5: Solve for x
    x = 169,094,122.71/13,936.43
  6. Step 6: Final answer
    x = 12,133.25

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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.