Home / 15,984.08-22,059.60-8,910.80

Finding the Fourth Proportional to 15,984.08, 22,059.60 and 8,910.80

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Solution

The fourth proportional to 15,984.08, 22,059.60 and 8,910.80 is: 12,297.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,984.08 : 22,059.60 = 8,910.80 : x
  2. Step 2: Convert to fraction form
    15,984.08/22,059.60 = 8,910.80/x
  3. Step 3: Cross multiply
    15,984.08x = 22,059.60 × 8,910.80
  4. Step 4: Simplify right side
    15,984.08x = 196,568,683.68
  5. Step 5: Solve for x
    x = 196,568,683.68/15,984.08
  6. Step 6: Final answer
    x = 12,297.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.