Home / 13,659.44-20,476.40-4,889.57

Finding the Fourth Proportional to 13,659.44, 20,476.40 and 4,889.57

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Solution

The fourth proportional to 13,659.44, 20,476.40 and 4,889.57 is: 7,329.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.44 : 20,476.40 = 4,889.57 : x
  2. Step 2: Convert to fraction form
    13,659.44/20,476.40 = 4,889.57/x
  3. Step 3: Cross multiply
    13,659.44x = 20,476.40 × 4,889.57
  4. Step 4: Simplify right side
    13,659.44x = 100,120,664.32
  5. Step 5: Solve for x
    x = 100,120,664.32/13,659.44
  6. Step 6: Final answer
    x = 7,329.78

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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.