Home / 13,340.41-20,022.68-7,105.63

Finding the Fourth Proportional to 13,340.41, 20,022.68 and 7,105.63

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Solution

The fourth proportional to 13,340.41, 20,022.68 and 7,105.63 is: 10,664.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.41 : 20,022.68 = 7,105.63 : x
  2. Step 2: Convert to fraction form
    13,340.41/20,022.68 = 7,105.63/x
  3. Step 3: Cross multiply
    13,340.41x = 20,022.68 × 7,105.63
  4. Step 4: Simplify right side
    13,340.41x = 142,273,720.16
  5. Step 5: Solve for x
    x = 142,273,720.16/13,340.41
  6. Step 6: Final answer
    x = 10,664.87

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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.