Home / 11,145.80-16,697.10-6,206.60

Finding the Fourth Proportional to 11,145.80, 16,697.10 and 6,206.60

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Solution

The fourth proportional to 11,145.80, 16,697.10 and 6,206.60 is: 9,297.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.80 : 16,697.10 = 6,206.60 : x
  2. Step 2: Convert to fraction form
    11,145.80/16,697.10 = 6,206.60/x
  3. Step 3: Cross multiply
    11,145.80x = 16,697.10 × 6,206.60
  4. Step 4: Simplify right side
    11,145.80x = 103,632,220.86
  5. Step 5: Solve for x
    x = 103,632,220.86/11,145.80
  6. Step 6: Final answer
    x = 9,297.87

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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.