Home / 8,928.78-13,378.41-3,082.14

Finding the Fourth Proportional to 8,928.78, 13,378.41 and 3,082.14

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Solution

The fourth proportional to 8,928.78, 13,378.41 and 3,082.14 is: 4,618.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.78 : 13,378.41 = 3,082.14 : x
  2. Step 2: Convert to fraction form
    8,928.78/13,378.41 = 3,082.14/x
  3. Step 3: Cross multiply
    8,928.78x = 13,378.41 × 3,082.14
  4. Step 4: Simplify right side
    8,928.78x = 41,234,132.60
  5. Step 5: Solve for x
    x = 41,234,132.60/8,928.78
  6. Step 6: Final answer
    x = 4,618.11

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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.