Home / 10,727.40-16,076.70-7,645.80

Finding the Fourth Proportional to 10,727.40, 16,076.70 and 7,645.80

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Solution

The fourth proportional to 10,727.40, 16,076.70 and 7,645.80 is: 11,458.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,727.40 : 16,076.70 = 7,645.80 : x
  2. Step 2: Convert to fraction form
    10,727.40/16,076.70 = 7,645.80/x
  3. Step 3: Cross multiply
    10,727.40x = 16,076.70 × 7,645.80
  4. Step 4: Simplify right side
    10,727.40x = 122,919,232.86
  5. Step 5: Solve for x
    x = 122,919,232.86/10,727.40
  6. Step 6: Final answer
    x = 11,458.44

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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.