Home / 10,906.05-16,349.36-4,327.77

Finding the Fourth Proportional to 10,906.05, 16,349.36 and 4,327.77

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Solution

The fourth proportional to 10,906.05, 16,349.36 and 4,327.77 is: 6,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,906.05 : 16,349.36 = 4,327.77 : x
  2. Step 2: Convert to fraction form
    10,906.05/16,349.36 = 4,327.77/x
  3. Step 3: Cross multiply
    10,906.05x = 16,349.36 × 4,327.77
  4. Step 4: Simplify right side
    10,906.05x = 70,756,248.09
  5. Step 5: Solve for x
    x = 70,756,248.09/10,906.05
  6. Step 6: Final answer
    x = 6,487.80

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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.