Home / 11,666.66-17,480.51-8,197.70

Finding the Fourth Proportional to 11,666.66, 17,480.51 and 8,197.70

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Solution

The fourth proportional to 11,666.66, 17,480.51 and 8,197.70 is: 12,282.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,666.66 : 17,480.51 = 8,197.70 : x
  2. Step 2: Convert to fraction form
    11,666.66/17,480.51 = 8,197.70/x
  3. Step 3: Cross multiply
    11,666.66x = 17,480.51 × 8,197.70
  4. Step 4: Simplify right side
    11,666.66x = 143,299,976.83
  5. Step 5: Solve for x
    x = 143,299,976.83/11,666.66
  6. Step 6: Final answer
    x = 12,282.86

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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.