Home / 11,111.92-15,334.46-6,396.21

Finding the Fourth Proportional to 11,111.92, 15,334.46 and 6,396.21

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Solution

The fourth proportional to 11,111.92, 15,334.46 and 6,396.21 is: 8,826.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,111.92 : 15,334.46 = 6,396.21 : x
  2. Step 2: Convert to fraction form
    11,111.92/15,334.46 = 6,396.21/x
  3. Step 3: Cross multiply
    11,111.92x = 15,334.46 × 6,396.21
  4. Step 4: Simplify right side
    11,111.92x = 98,082,349.72
  5. Step 5: Solve for x
    x = 98,082,349.72/11,111.92
  6. Step 6: Final answer
    x = 8,826.77

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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.