Home / 11,204.20-16,811.70-8,570.80

Finding the Fourth Proportional to 11,204.20, 16,811.70 and 8,570.80

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Solution

The fourth proportional to 11,204.20, 16,811.70 and 8,570.80 is: 12,860.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,204.20 : 16,811.70 = 8,570.80 : x
  2. Step 2: Convert to fraction form
    11,204.20/16,811.70 = 8,570.80/x
  3. Step 3: Cross multiply
    11,204.20x = 16,811.70 × 8,570.80
  4. Step 4: Simplify right side
    11,204.20x = 144,089,718.36
  5. Step 5: Solve for x
    x = 144,089,718.36/11,204.20
  6. Step 6: Final answer
    x = 12,860.33

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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.