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Finding the Fourth Proportional to 12,017.73, 16,584.06 and 6,639.86

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Solution

The fourth proportional to 12,017.73, 16,584.06 and 6,639.86 is: 9,162.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,017.73 : 16,584.06 = 6,639.86 : x
  2. Step 2: Convert to fraction form
    12,017.73/16,584.06 = 6,639.86/x
  3. Step 3: Cross multiply
    12,017.73x = 16,584.06 × 6,639.86
  4. Step 4: Simplify right side
    12,017.73x = 110,115,772.36
  5. Step 5: Solve for x
    x = 110,115,772.36/12,017.73
  6. Step 6: Final answer
    x = 9,162.77

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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.