Home / 18,099.30-27,138.06-6,996.90

Finding the Fourth Proportional to 18,099.30, 27,138.06 and 6,996.90

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Solution

The fourth proportional to 18,099.30, 27,138.06 and 6,996.90 is: 10,491.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,099.30 : 27,138.06 = 6,996.90 : x
  2. Step 2: Convert to fraction form
    18,099.30/27,138.06 = 6,996.90/x
  3. Step 3: Cross multiply
    18,099.30x = 27,138.06 × 6,996.90
  4. Step 4: Simplify right side
    18,099.30x = 189,882,292.01
  5. Step 5: Solve for x
    x = 189,882,292.01/18,099.30
  6. Step 6: Final answer
    x = 10,491.14

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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.