Home / 11,367.48-15,687.91-6,891.42

Finding the Fourth Proportional to 11,367.48, 15,687.91 and 6,891.42

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Solution

The fourth proportional to 11,367.48, 15,687.91 and 6,891.42 is: 9,510.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,367.48 : 15,687.91 = 6,891.42 : x
  2. Step 2: Convert to fraction form
    11,367.48/15,687.91 = 6,891.42/x
  3. Step 3: Cross multiply
    11,367.48x = 15,687.91 × 6,891.42
  4. Step 4: Simplify right side
    11,367.48x = 108,111,863.84
  5. Step 5: Solve for x
    x = 108,111,863.84/11,367.48
  6. Step 6: Final answer
    x = 9,510.63

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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.