Home / 13,965.76-20,935.44-5,194.72

Finding the Fourth Proportional to 13,965.76, 20,935.44 and 5,194.72

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Solution

The fourth proportional to 13,965.76, 20,935.44 and 5,194.72 is: 7,787.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.76 : 20,935.44 = 5,194.72 : x
  2. Step 2: Convert to fraction form
    13,965.76/20,935.44 = 5,194.72/x
  3. Step 3: Cross multiply
    13,965.76x = 20,935.44 × 5,194.72
  4. Step 4: Simplify right side
    13,965.76x = 108,753,748.88
  5. Step 5: Solve for x
    x = 108,753,748.88/13,965.76
  6. Step 6: Final answer
    x = 7,787.17

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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.