Home / 13,691.94-20,528.64-5,366.76

Finding the Fourth Proportional to 13,691.94, 20,528.64 and 5,366.76

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Solution

The fourth proportional to 13,691.94, 20,528.64 and 5,366.76 is: 8,046.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,691.94 : 20,528.64 = 5,366.76 : x
  2. Step 2: Convert to fraction form
    13,691.94/20,528.64 = 5,366.76/x
  3. Step 3: Cross multiply
    13,691.94x = 20,528.64 × 5,366.76
  4. Step 4: Simplify right side
    13,691.94x = 110,172,207.02
  5. Step 5: Solve for x
    x = 110,172,207.02/13,691.94
  6. Step 6: Final answer
    x = 8,046.50

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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.