Home / 11,942.91-16,480.89-6,637.59

Finding the Fourth Proportional to 11,942.91, 16,480.89 and 6,637.59

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Solution

The fourth proportional to 11,942.91, 16,480.89 and 6,637.59 is: 9,159.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.91 : 16,480.89 = 6,637.59 : x
  2. Step 2: Convert to fraction form
    11,942.91/16,480.89 = 6,637.59/x
  3. Step 3: Cross multiply
    11,942.91x = 16,480.89 × 6,637.59
  4. Step 4: Simplify right side
    11,942.91x = 109,393,390.66
  5. Step 5: Solve for x
    x = 109,393,390.66/11,942.91
  6. Step 6: Final answer
    x = 9,159.69

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1.5x scale

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.