Home / 11,690.43-16,134.18-6,655.86

Finding the Fourth Proportional to 11,690.43, 16,134.18 and 6,655.86

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Solution

The fourth proportional to 11,690.43, 16,134.18 and 6,655.86 is: 9,185.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.43 : 16,134.18 = 6,655.86 : x
  2. Step 2: Convert to fraction form
    11,690.43/16,134.18 = 6,655.86/x
  3. Step 3: Cross multiply
    11,690.43x = 16,134.18 × 6,655.86
  4. Step 4: Simplify right side
    11,690.43x = 107,386,843.29
  5. Step 5: Solve for x
    x = 107,386,843.29/11,690.43
  6. Step 6: Final answer
    x = 9,185.88

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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.