Home / 11,169.62-15,414.87-7,386.21

Finding the Fourth Proportional to 11,169.62, 15,414.87 and 7,386.21

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Solution

The fourth proportional to 11,169.62, 15,414.87 and 7,386.21 is: 10,193.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,169.62 : 15,414.87 = 7,386.21 : x
  2. Step 2: Convert to fraction form
    11,169.62/15,414.87 = 7,386.21/x
  3. Step 3: Cross multiply
    11,169.62x = 15,414.87 × 7,386.21
  4. Step 4: Simplify right side
    11,169.62x = 113,857,466.94
  5. Step 5: Solve for x
    x = 113,857,466.94/11,169.62
  6. Step 6: Final answer
    x = 10,193.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.