Home / 13,877.25-20,806.14-5,111.04

Finding the Fourth Proportional to 13,877.25, 20,806.14 and 5,111.04

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Solution

The fourth proportional to 13,877.25, 20,806.14 and 5,111.04 is: 7,662.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.25 : 20,806.14 = 5,111.04 : x
  2. Step 2: Convert to fraction form
    13,877.25/20,806.14 = 5,111.04/x
  3. Step 3: Cross multiply
    13,877.25x = 20,806.14 × 5,111.04
  4. Step 4: Simplify right side
    13,877.25x = 106,340,936.22
  5. Step 5: Solve for x
    x = 106,340,936.22/13,877.25
  6. Step 6: Final answer
    x = 7,662.97

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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.