Home / 11,949.64-16,488.90-6,643.43

Finding the Fourth Proportional to 11,949.64, 16,488.90 and 6,643.43

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Solution

The fourth proportional to 11,949.64, 16,488.90 and 6,643.43 is: 9,167.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,949.64 : 16,488.90 = 6,643.43 : x
  2. Step 2: Convert to fraction form
    11,949.64/16,488.90 = 6,643.43/x
  3. Step 3: Cross multiply
    11,949.64x = 16,488.90 × 6,643.43
  4. Step 4: Simplify right side
    11,949.64x = 109,542,832.32
  5. Step 5: Solve for x
    x = 109,542,832.32/11,949.64
  6. Step 6: Final answer
    x = 9,167.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.