Home / 11,207.40-16,811.10-9,997.80

Finding the Fourth Proportional to 11,207.40, 16,811.10 and 9,997.80

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Solution

The fourth proportional to 11,207.40, 16,811.10 and 9,997.80 is: 14,996.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,207.40 : 16,811.10 = 9,997.80 : x
  2. Step 2: Convert to fraction form
    11,207.40/16,811.10 = 9,997.80/x
  3. Step 3: Cross multiply
    11,207.40x = 16,811.10 × 9,997.80
  4. Step 4: Simplify right side
    11,207.40x = 168,074,015.58
  5. Step 5: Solve for x
    x = 168,074,015.58/11,207.40
  6. Step 6: Final answer
    x = 14,996.70

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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.