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Finding the Fourth Proportional to 11,807.11, 17,713.11 and 9,872.83

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Solution

The fourth proportional to 11,807.11, 17,713.11 and 9,872.83 is: 14,811.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,807.11 : 17,713.11 = 9,872.83 : x
  2. Step 2: Convert to fraction form
    11,807.11/17,713.11 = 9,872.83/x
  3. Step 3: Cross multiply
    11,807.11x = 17,713.11 × 9,872.83
  4. Step 4: Simplify right side
    11,807.11x = 174,878,523.80
  5. Step 5: Solve for x
    x = 174,878,523.80/11,807.11
  6. Step 6: Final answer
    x = 14,811.29

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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.