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Finding the Fourth Proportional to 13,950.18, 20,928.92 and 8,101.17

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Solution

The fourth proportional to 13,950.18, 20,928.92 and 8,101.17 is: 12,153.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,950.18 : 20,928.92 = 8,101.17 : x
  2. Step 2: Convert to fraction form
    13,950.18/20,928.92 = 8,101.17/x
  3. Step 3: Cross multiply
    13,950.18x = 20,928.92 × 8,101.17
  4. Step 4: Simplify right side
    13,950.18x = 169,548,698.33
  5. Step 5: Solve for x
    x = 169,548,698.33/13,950.18
  6. Step 6: Final answer
    x = 12,153.87

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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.