Home / 11,139.93-16,688.36-6,194.61

Finding the Fourth Proportional to 11,139.93, 16,688.36 and 6,194.61

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Solution

The fourth proportional to 11,139.93, 16,688.36 and 6,194.61 is: 9,279.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.93 : 16,688.36 = 6,194.61 : x
  2. Step 2: Convert to fraction form
    11,139.93/16,688.36 = 6,194.61/x
  3. Step 3: Cross multiply
    11,139.93x = 16,688.36 × 6,194.61
  4. Step 4: Simplify right side
    11,139.93x = 103,377,897.23
  5. Step 5: Solve for x
    x = 103,377,897.23/11,139.93
  6. Step 6: Final answer
    x = 9,279.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.