Home / 18,169.31-27,264.90-7,781.06

Finding the Fourth Proportional to 18,169.31, 27,264.90 and 7,781.06

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Solution

The fourth proportional to 18,169.31, 27,264.90 and 7,781.06 is: 11,676.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,169.31 : 27,264.90 = 7,781.06 : x
  2. Step 2: Convert to fraction form
    18,169.31/27,264.90 = 7,781.06/x
  3. Step 3: Cross multiply
    18,169.31x = 27,264.90 × 7,781.06
  4. Step 4: Simplify right side
    18,169.31x = 212,149,920.14
  5. Step 5: Solve for x
    x = 212,149,920.14/18,169.31
  6. Step 6: Final answer
    x = 11,676.28

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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.