Home / 11,131.86-16,704.27-4,206.90

Finding the Fourth Proportional to 11,131.86, 16,704.27 and 4,206.90

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Solution

The fourth proportional to 11,131.86, 16,704.27 and 4,206.90 is: 6,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.86 : 16,704.27 = 4,206.90 : x
  2. Step 2: Convert to fraction form
    11,131.86/16,704.27 = 4,206.90/x
  3. Step 3: Cross multiply
    11,131.86x = 16,704.27 × 4,206.90
  4. Step 4: Simplify right side
    11,131.86x = 70,273,193.46
  5. Step 5: Solve for x
    x = 70,273,193.46/11,131.86
  6. Step 6: Final answer
    x = 6,312.80

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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.