Home / 11,272.50-16,910.64-3,479.76

Finding the Fourth Proportional to 11,272.50, 16,910.64 and 3,479.76

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Solution

The fourth proportional to 11,272.50, 16,910.64 and 3,479.76 is: 5,220.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,272.50 : 16,910.64 = 3,479.76 : x
  2. Step 2: Convert to fraction form
    11,272.50/16,910.64 = 3,479.76/x
  3. Step 3: Cross multiply
    11,272.50x = 16,910.64 × 3,479.76
  4. Step 4: Simplify right side
    11,272.50x = 58,844,968.65
  5. Step 5: Solve for x
    x = 58,844,968.65/11,272.50
  6. Step 6: Final answer
    x = 5,220.22

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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.