Home / 12,204.35-18,285.62-6,661.58

Finding the Fourth Proportional to 12,204.35, 18,285.62 and 6,661.58

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Solution

The fourth proportional to 12,204.35, 18,285.62 and 6,661.58 is: 9,980.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,204.35 : 18,285.62 = 6,661.58 : x
  2. Step 2: Convert to fraction form
    12,204.35/18,285.62 = 6,661.58/x
  3. Step 3: Cross multiply
    12,204.35x = 18,285.62 × 6,661.58
  4. Step 4: Simplify right side
    12,204.35x = 121,811,120.48
  5. Step 5: Solve for x
    x = 121,811,120.48/12,204.35
  6. Step 6: Final answer
    x = 9,980.96

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1.5x scale

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.