Home / 11,351.20-17,005.68-6,161.44

Finding the Fourth Proportional to 11,351.20, 17,005.68 and 6,161.44

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Solution

The fourth proportional to 11,351.20, 17,005.68 and 6,161.44 is: 9,230.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,351.20 : 17,005.68 = 6,161.44 : x
  2. Step 2: Convert to fraction form
    11,351.20/17,005.68 = 6,161.44/x
  3. Step 3: Cross multiply
    11,351.20x = 17,005.68 × 6,161.44
  4. Step 4: Simplify right side
    11,351.20x = 104,779,476.98
  5. Step 5: Solve for x
    x = 104,779,476.98/11,351.20
  6. Step 6: Final answer
    x = 9,230.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.