Home / 13,759.72-20,631.84-4,397.56

Finding the Fourth Proportional to 13,759.72, 20,631.84 and 4,397.56

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Solution

The fourth proportional to 13,759.72, 20,631.84 and 4,397.56 is: 6,593.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,759.72 : 20,631.84 = 4,397.56 : x
  2. Step 2: Convert to fraction form
    13,759.72/20,631.84 = 4,397.56/x
  3. Step 3: Cross multiply
    13,759.72x = 20,631.84 × 4,397.56
  4. Step 4: Simplify right side
    13,759.72x = 90,729,754.31
  5. Step 5: Solve for x
    x = 90,729,754.31/13,759.72
  6. Step 6: Final answer
    x = 6,593.87

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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.