Home / 11,109.88-16,658.34-3,316.60

Finding the Fourth Proportional to 11,109.88, 16,658.34 and 3,316.60

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Solution

The fourth proportional to 11,109.88, 16,658.34 and 3,316.60 is: 4,972.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.88 : 16,658.34 = 3,316.60 : x
  2. Step 2: Convert to fraction form
    11,109.88/16,658.34 = 3,316.60/x
  3. Step 3: Cross multiply
    11,109.88x = 16,658.34 × 3,316.60
  4. Step 4: Simplify right side
    11,109.88x = 55,249,050.44
  5. Step 5: Solve for x
    x = 55,249,050.44/11,109.88
  6. Step 6: Final answer
    x = 4,972.97

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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.