Home / 18,195.26-27,291.87-7,660.80

Finding the Fourth Proportional to 18,195.26, 27,291.87 and 7,660.80

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Solution

The fourth proportional to 18,195.26, 27,291.87 and 7,660.80 is: 11,490.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,195.26 : 27,291.87 = 7,660.80 : x
  2. Step 2: Convert to fraction form
    18,195.26/27,291.87 = 7,660.80/x
  3. Step 3: Cross multiply
    18,195.26x = 27,291.87 × 7,660.80
  4. Step 4: Simplify right side
    18,195.26x = 209,077,557.70
  5. Step 5: Solve for x
    x = 209,077,557.70/18,195.26
  6. Step 6: Final answer
    x = 11,490.77

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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.