Home / 13,935.22-20,908.14-8,392.50

Finding the Fourth Proportional to 13,935.22, 20,908.14 and 8,392.50

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Solution

The fourth proportional to 13,935.22, 20,908.14 and 8,392.50 is: 12,591.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.22 : 20,908.14 = 8,392.50 : x
  2. Step 2: Convert to fraction form
    13,935.22/20,908.14 = 8,392.50/x
  3. Step 3: Cross multiply
    13,935.22x = 20,908.14 × 8,392.50
  4. Step 4: Simplify right side
    13,935.22x = 175,471,564.95
  5. Step 5: Solve for x
    x = 175,471,564.95/13,935.22
  6. Step 6: Final answer
    x = 12,591.95

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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.