Home / 11,103.30-15,313.91-6,626.09

Finding the Fourth Proportional to 11,103.30, 15,313.91 and 6,626.09

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Solution

The fourth proportional to 11,103.30, 15,313.91 and 6,626.09 is: 9,138.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,103.30 : 15,313.91 = 6,626.09 : x
  2. Step 2: Convert to fraction form
    11,103.30/15,313.91 = 6,626.09/x
  3. Step 3: Cross multiply
    11,103.30x = 15,313.91 × 6,626.09
  4. Step 4: Simplify right side
    11,103.30x = 101,471,236.21
  5. Step 5: Solve for x
    x = 101,471,236.21/11,103.30
  6. Step 6: Final answer
    x = 9,138.84

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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.