Home / 11,155.62-15,401.43-6,969.54

Finding the Fourth Proportional to 11,155.62, 15,401.43 and 6,969.54

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Solution

The fourth proportional to 11,155.62, 15,401.43 and 6,969.54 is: 9,622.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,155.62 : 15,401.43 = 6,969.54 : x
  2. Step 2: Convert to fraction form
    11,155.62/15,401.43 = 6,969.54/x
  3. Step 3: Cross multiply
    11,155.62x = 15,401.43 × 6,969.54
  4. Step 4: Simplify right side
    11,155.62x = 107,340,882.44
  5. Step 5: Solve for x
    x = 107,340,882.44/11,155.62
  6. Step 6: Final answer
    x = 9,622.14

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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.