Home / 12,206.66-16,845.18-6,617.66

Finding the Fourth Proportional to 12,206.66, 16,845.18 and 6,617.66

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Solution

The fourth proportional to 12,206.66, 16,845.18 and 6,617.66 is: 9,132.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,206.66 : 16,845.18 = 6,617.66 : x
  2. Step 2: Convert to fraction form
    12,206.66/16,845.18 = 6,617.66/x
  3. Step 3: Cross multiply
    12,206.66x = 16,845.18 × 6,617.66
  4. Step 4: Simplify right side
    12,206.66x = 111,475,673.88
  5. Step 5: Solve for x
    x = 111,475,673.88/12,206.66
  6. Step 6: Final answer
    x = 9,132.36

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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.