Home / 11,157.11-15,396.55-6,121.24

Finding the Fourth Proportional to 11,157.11, 15,396.55 and 6,121.24

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Solution

The fourth proportional to 11,157.11, 15,396.55 and 6,121.24 is: 8,447.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,157.11 : 15,396.55 = 6,121.24 : x
  2. Step 2: Convert to fraction form
    11,157.11/15,396.55 = 6,121.24/x
  3. Step 3: Cross multiply
    11,157.11x = 15,396.55 × 6,121.24
  4. Step 4: Simplify right side
    11,157.11x = 94,245,977.72
  5. Step 5: Solve for x
    x = 94,245,977.72/11,157.11
  6. Step 6: Final answer
    x = 8,447.17

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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.