Home / 18,084.98-27,131.62-6,991.76

Finding the Fourth Proportional to 18,084.98, 27,131.62 and 6,991.76

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Solution

The fourth proportional to 18,084.98, 27,131.62 and 6,991.76 is: 10,489.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,084.98 : 27,131.62 = 6,991.76 : x
  2. Step 2: Convert to fraction form
    18,084.98/27,131.62 = 6,991.76/x
  3. Step 3: Cross multiply
    18,084.98x = 27,131.62 × 6,991.76
  4. Step 4: Simplify right side
    18,084.98x = 189,697,775.45
  5. Step 5: Solve for x
    x = 189,697,775.45/18,084.98
  6. Step 6: Final answer
    x = 10,489.24

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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.