Home / 11,156.96-15,396.41-6,121.17

Finding the Fourth Proportional to 11,156.96, 15,396.41 and 6,121.17

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Solution

The fourth proportional to 11,156.96, 15,396.41 and 6,121.17 is: 8,447.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,156.96 : 15,396.41 = 6,121.17 : x
  2. Step 2: Convert to fraction form
    11,156.96/15,396.41 = 6,121.17/x
  3. Step 3: Cross multiply
    11,156.96x = 15,396.41 × 6,121.17
  4. Step 4: Simplify right side
    11,156.96x = 94,244,058.30
  5. Step 5: Solve for x
    x = 94,244,058.30/11,156.96
  6. Step 6: Final answer
    x = 8,447.11

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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.