Home / 18,206.11-27,301.44-7,680.85

Finding the Fourth Proportional to 18,206.11, 27,301.44 and 7,680.85

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Solution

The fourth proportional to 18,206.11, 27,301.44 and 7,680.85 is: 11,518.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,206.11 : 27,301.44 = 7,680.85 : x
  2. Step 2: Convert to fraction form
    18,206.11/27,301.44 = 7,680.85/x
  3. Step 3: Cross multiply
    18,206.11x = 27,301.44 × 7,680.85
  4. Step 4: Simplify right side
    18,206.11x = 209,698,265.42
  5. Step 5: Solve for x
    x = 209,698,265.42/18,206.11
  6. Step 6: Final answer
    x = 11,518.02

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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.