Home / 11,118.90-16,679.21-3,221.52

Finding the Fourth Proportional to 11,118.90, 16,679.21 and 3,221.52

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Solution

The fourth proportional to 11,118.90, 16,679.21 and 3,221.52 is: 4,832.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.90 : 16,679.21 = 3,221.52 : x
  2. Step 2: Convert to fraction form
    11,118.90/16,679.21 = 3,221.52/x
  3. Step 3: Cross multiply
    11,118.90x = 16,679.21 × 3,221.52
  4. Step 4: Simplify right side
    11,118.90x = 53,732,434.19
  5. Step 5: Solve for x
    x = 53,732,434.19/11,118.90
  6. Step 6: Final answer
    x = 4,832.53

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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.