Home / 11,767.80-17,736.30-10,143.96

Finding the Fourth Proportional to 11,767.80, 17,736.30 and 10,143.96

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Solution

The fourth proportional to 11,767.80, 17,736.30 and 10,143.96 is: 15,288.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,767.80 : 17,736.30 = 10,143.96 : x
  2. Step 2: Convert to fraction form
    11,767.80/17,736.30 = 10,143.96/x
  3. Step 3: Cross multiply
    11,767.80x = 17,736.30 × 10,143.96
  4. Step 4: Simplify right side
    11,767.80x = 179,916,317.75
  5. Step 5: Solve for x
    x = 179,916,317.75/11,767.80
  6. Step 6: Final answer
    x = 15,288.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.