Home / 18,716.18-28,074.30-4,865.18

Finding the Fourth Proportional to 18,716.18, 28,074.30 and 4,865.18

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Solution

The fourth proportional to 18,716.18, 28,074.30 and 4,865.18 is: 7,297.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,716.18 : 28,074.30 = 4,865.18 : x
  2. Step 2: Convert to fraction form
    18,716.18/28,074.30 = 4,865.18/x
  3. Step 3: Cross multiply
    18,716.18x = 28,074.30 × 4,865.18
  4. Step 4: Simplify right side
    18,716.18x = 136,586,522.87
  5. Step 5: Solve for x
    x = 136,586,522.87/18,716.18
  6. Step 6: Final answer
    x = 7,297.78

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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.