Home / 10,933.88-16,403.48-3,142.64

Finding the Fourth Proportional to 10,933.88, 16,403.48 and 3,142.64

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Solution

The fourth proportional to 10,933.88, 16,403.48 and 3,142.64 is: 4,714.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,933.88 : 16,403.48 = 3,142.64 : x
  2. Step 2: Convert to fraction form
    10,933.88/16,403.48 = 3,142.64/x
  3. Step 3: Cross multiply
    10,933.88x = 16,403.48 × 3,142.64
  4. Step 4: Simplify right side
    10,933.88x = 51,550,232.39
  5. Step 5: Solve for x
    x = 51,550,232.39/10,933.88
  6. Step 6: Final answer
    x = 4,714.72

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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.