Home / 19,249.64-28,857.18-6,929

Finding the Fourth Proportional to 19,249.64, 28,857.18 and 6,929

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Solution

The fourth proportional to 19,249.64, 28,857.18 and 6,929 is: 10,387.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,249.64 : 28,857.18 = 6,929 : x
  2. Step 2: Convert to fraction form
    19,249.64/28,857.18 = 6,929/x
  3. Step 3: Cross multiply
    19,249.64x = 28,857.18 × 6,929
  4. Step 4: Simplify right side
    19,249.64x = 199,951,400.22
  5. Step 5: Solve for x
    x = 199,951,400.22/19,249.64
  6. Step 6: Final answer
    x = 10,387.28

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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.