Home / 18,386.14-27,579.18-7,997.88

Finding the Fourth Proportional to 18,386.14, 27,579.18 and 7,997.88

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Solution

The fourth proportional to 18,386.14, 27,579.18 and 7,997.88 is: 11,996.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386.14 : 27,579.18 = 7,997.88 : x
  2. Step 2: Convert to fraction form
    18,386.14/27,579.18 = 7,997.88/x
  3. Step 3: Cross multiply
    18,386.14x = 27,579.18 × 7,997.88
  4. Step 4: Simplify right side
    18,386.14x = 220,574,972.14
  5. Step 5: Solve for x
    x = 220,574,972.14/18,386.14
  6. Step 6: Final answer
    x = 11,996.81

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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.