Home / 7,414.20-11,115-5,329.08

Finding the Fourth Proportional to 7,414.20, 11,115 and 5,329.08

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Solution

The fourth proportional to 7,414.20, 11,115 and 5,329.08 is: 7,989.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,414.20 : 11,115 = 5,329.08 : x
  2. Step 2: Convert to fraction form
    7,414.20/11,115 = 5,329.08/x
  3. Step 3: Cross multiply
    7,414.20x = 11,115 × 5,329.08
  4. Step 4: Simplify right side
    7,414.20x = 59,232,724.20
  5. Step 5: Solve for x
    x = 59,232,724.20/7,414.20
  6. Step 6: Final answer
    x = 7,989.09

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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.