Home / 11,103.08-15,321.58-6,626.79

Finding the Fourth Proportional to 11,103.08, 15,321.58 and 6,626.79

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Solution

The fourth proportional to 11,103.08, 15,321.58 and 6,626.79 is: 9,144.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,103.08 : 15,321.58 = 6,626.79 : x
  2. Step 2: Convert to fraction form
    11,103.08/15,321.58 = 6,626.79/x
  3. Step 3: Cross multiply
    11,103.08x = 15,321.58 × 6,626.79
  4. Step 4: Simplify right side
    11,103.08x = 101,532,876.56
  5. Step 5: Solve for x
    x = 101,532,876.56/11,103.08
  6. Step 6: Final answer
    x = 9,144.57

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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.