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Finding the Fourth Proportional to 11,103.50, 15,329.50 and 6,917.42

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Solution

The fourth proportional to 11,103.50, 15,329.50 and 6,917.42 is: 9,550.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,103.50 : 15,329.50 = 6,917.42 : x
  2. Step 2: Convert to fraction form
    11,103.50/15,329.50 = 6,917.42/x
  3. Step 3: Cross multiply
    11,103.50x = 15,329.50 × 6,917.42
  4. Step 4: Simplify right side
    11,103.50x = 106,040,495.95
  5. Step 5: Solve for x
    x = 106,040,495.95/11,103.50
  6. Step 6: Final answer
    x = 9,550.19

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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.