Home / 10,195.79-15,288.18-3,172.76

Finding the Fourth Proportional to 10,195.79, 15,288.18 and 3,172.76

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Solution

The fourth proportional to 10,195.79, 15,288.18 and 3,172.76 is: 4,757.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,195.79 : 15,288.18 = 3,172.76 : x
  2. Step 2: Convert to fraction form
    10,195.79/15,288.18 = 3,172.76/x
  3. Step 3: Cross multiply
    10,195.79x = 15,288.18 × 3,172.76
  4. Step 4: Simplify right side
    10,195.79x = 48,505,725.98
  5. Step 5: Solve for x
    x = 48,505,725.98/10,195.79
  6. Step 6: Final answer
    x = 4,757.43

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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.