Home / 18,518.56-27,723.33-11,475.95

Finding the Fourth Proportional to 18,518.56, 27,723.33 and 11,475.95

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Solution

The fourth proportional to 18,518.56, 27,723.33 and 11,475.95 is: 17,180.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518.56 : 27,723.33 = 11,475.95 : x
  2. Step 2: Convert to fraction form
    18,518.56/27,723.33 = 11,475.95/x
  3. Step 3: Cross multiply
    18,518.56x = 27,723.33 × 11,475.95
  4. Step 4: Simplify right side
    18,518.56x = 318,151,410.30
  5. Step 5: Solve for x
    x = 318,151,410.30/18,518.56
  6. Step 6: Final answer
    x = 17,180.14

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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.