Home / 18,218.46-27,334.35-7,691.10

Finding the Fourth Proportional to 18,218.46, 27,334.35 and 7,691.10

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Solution

The fourth proportional to 18,218.46, 27,334.35 and 7,691.10 is: 11,539.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.46 : 27,334.35 = 7,691.10 : x
  2. Step 2: Convert to fraction form
    18,218.46/27,334.35 = 7,691.10/x
  3. Step 3: Cross multiply
    18,218.46x = 27,334.35 × 7,691.10
  4. Step 4: Simplify right side
    18,218.46x = 210,231,219.29
  5. Step 5: Solve for x
    x = 210,231,219.29/18,218.46
  6. Step 6: Final answer
    x = 11,539.46

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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.