Home / 13,440.94-20,164.14-5,649.75

Finding the Fourth Proportional to 13,440.94, 20,164.14 and 5,649.75

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Solution

The fourth proportional to 13,440.94, 20,164.14 and 5,649.75 is: 8,475.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.94 : 20,164.14 = 5,649.75 : x
  2. Step 2: Convert to fraction form
    13,440.94/20,164.14 = 5,649.75/x
  3. Step 3: Cross multiply
    13,440.94x = 20,164.14 × 5,649.75
  4. Step 4: Simplify right side
    13,440.94x = 113,922,349.97
  5. Step 5: Solve for x
    x = 113,922,349.97/13,440.94
  6. Step 6: Final answer
    x = 8,475.77

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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.