Home / 11,726.96-16,182.08-6,690

Finding the Fourth Proportional to 11,726.96, 16,182.08 and 6,690

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Solution

The fourth proportional to 11,726.96, 16,182.08 and 6,690 is: 9,231.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,726.96 : 16,182.08 = 6,690 : x
  2. Step 2: Convert to fraction form
    11,726.96/16,182.08 = 6,690/x
  3. Step 3: Cross multiply
    11,726.96x = 16,182.08 × 6,690
  4. Step 4: Simplify right side
    11,726.96x = 108,258,115.20
  5. Step 5: Solve for x
    x = 108,258,115.20/11,726.96
  6. Step 6: Final answer
    x = 9,231.56

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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.