Home / 13,876.10-20,816.94-5,111.06

Finding the Fourth Proportional to 13,876.10, 20,816.94 and 5,111.06

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Solution

The fourth proportional to 13,876.10, 20,816.94 and 5,111.06 is: 7,667.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,876.10 : 20,816.94 = 5,111.06 : x
  2. Step 2: Convert to fraction form
    13,876.10/20,816.94 = 5,111.06/x
  3. Step 3: Cross multiply
    13,876.10x = 20,816.94 × 5,111.06
  4. Step 4: Simplify right side
    13,876.10x = 106,396,629.36
  5. Step 5: Solve for x
    x = 106,396,629.36/13,876.10
  6. Step 6: Final answer
    x = 7,667.62

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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.