Home / 13,943.97-20,910.50-5,057.19

Finding the Fourth Proportional to 13,943.97, 20,910.50 and 5,057.19

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Solution

The fourth proportional to 13,943.97, 20,910.50 and 5,057.19 is: 7,583.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.97 : 20,910.50 = 5,057.19 : x
  2. Step 2: Convert to fraction form
    13,943.97/20,910.50 = 5,057.19/x
  3. Step 3: Cross multiply
    13,943.97x = 20,910.50 × 5,057.19
  4. Step 4: Simplify right side
    13,943.97x = 105,748,371.50
  5. Step 5: Solve for x
    x = 105,748,371.50/13,943.97
  6. Step 6: Final answer
    x = 7,583.81

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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.