Home / 11,705.91-17,560.61-4,309.80

Finding the Fourth Proportional to 11,705.91, 17,560.61 and 4,309.80

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Solution

The fourth proportional to 11,705.91, 17,560.61 and 4,309.80 is: 6,465.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,705.91 : 17,560.61 = 4,309.80 : x
  2. Step 2: Convert to fraction form
    11,705.91/17,560.61 = 4,309.80/x
  3. Step 3: Cross multiply
    11,705.91x = 17,560.61 × 4,309.80
  4. Step 4: Simplify right side
    11,705.91x = 75,682,645.74
  5. Step 5: Solve for x
    x = 75,682,645.74/11,705.91
  6. Step 6: Final answer
    x = 6,465.34

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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.