Home / 13,767.98-18,998.19-8,101.48

Finding the Fourth Proportional to 13,767.98, 18,998.19 and 8,101.48

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Solution

The fourth proportional to 13,767.98, 18,998.19 and 8,101.48 is: 11,179.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,767.98 : 18,998.19 = 8,101.48 : x
  2. Step 2: Convert to fraction form
    13,767.98/18,998.19 = 8,101.48/x
  3. Step 3: Cross multiply
    13,767.98x = 18,998.19 × 8,101.48
  4. Step 4: Simplify right side
    13,767.98x = 153,913,456.32
  5. Step 5: Solve for x
    x = 153,913,456.32/13,767.98
  6. Step 6: Final answer
    x = 11,179.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.