Home / 11,206.40-16,776.32-8,297.60

Finding the Fourth Proportional to 11,206.40, 16,776.32 and 8,297.60

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Solution

The fourth proportional to 11,206.40, 16,776.32 and 8,297.60 is: 12,421.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,206.40 : 16,776.32 = 8,297.60 : x
  2. Step 2: Convert to fraction form
    11,206.40/16,776.32 = 8,297.60/x
  3. Step 3: Cross multiply
    11,206.40x = 16,776.32 × 8,297.60
  4. Step 4: Simplify right side
    11,206.40x = 139,203,192.83
  5. Step 5: Solve for x
    x = 139,203,192.83/11,206.40
  6. Step 6: Final answer
    x = 12,421.76

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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.