Home / 13,660.56-20,489.94-5,759.70

Finding the Fourth Proportional to 13,660.56, 20,489.94 and 5,759.70

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Solution

The fourth proportional to 13,660.56, 20,489.94 and 5,759.70 is: 8,639.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660.56 : 20,489.94 = 5,759.70 : x
  2. Step 2: Convert to fraction form
    13,660.56/20,489.94 = 5,759.70/x
  3. Step 3: Cross multiply
    13,660.56x = 20,489.94 × 5,759.70
  4. Step 4: Simplify right side
    13,660.56x = 118,015,907.42
  5. Step 5: Solve for x
    x = 118,015,907.42/13,660.56
  6. Step 6: Final answer
    x = 8,639.17

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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.