Home / 13,863.78-20,795.68-3,475.56

Finding the Fourth Proportional to 13,863.78, 20,795.68 and 3,475.56

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Solution

The fourth proportional to 13,863.78, 20,795.68 and 3,475.56 is: 5,213.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,863.78 : 20,795.68 = 3,475.56 : x
  2. Step 2: Convert to fraction form
    13,863.78/20,795.68 = 3,475.56/x
  3. Step 3: Cross multiply
    13,863.78x = 20,795.68 × 3,475.56
  4. Step 4: Simplify right side
    13,863.78x = 72,276,633.58
  5. Step 5: Solve for x
    x = 72,276,633.58/13,863.78
  6. Step 6: Final answer
    x = 5,213.34

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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.