Home / 18,092.28-27,120.40-8,729.64

Finding the Fourth Proportional to 18,092.28, 27,120.40 and 8,729.64

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Solution

The fourth proportional to 18,092.28, 27,120.40 and 8,729.64 is: 13,085.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,092.28 : 27,120.40 = 8,729.64 : x
  2. Step 2: Convert to fraction form
    18,092.28/27,120.40 = 8,729.64/x
  3. Step 3: Cross multiply
    18,092.28x = 27,120.40 × 8,729.64
  4. Step 4: Simplify right side
    18,092.28x = 236,751,328.66
  5. Step 5: Solve for x
    x = 236,751,328.66/18,092.28
  6. Step 6: Final answer
    x = 13,085.77

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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.