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Finding the Fourth Proportional to 12,201.66, 16,838.31 and 6,612.66

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Solution

The fourth proportional to 12,201.66, 16,838.31 and 6,612.66 is: 9,125.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201.66 : 16,838.31 = 6,612.66 : x
  2. Step 2: Convert to fraction form
    12,201.66/16,838.31 = 6,612.66/x
  3. Step 3: Cross multiply
    12,201.66x = 16,838.31 × 6,612.66
  4. Step 4: Simplify right side
    12,201.66x = 111,346,019.00
  5. Step 5: Solve for x
    x = 111,346,019.00/12,201.66
  6. Step 6: Final answer
    x = 9,125.48

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1.5x scale

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.