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Finding the Fourth Proportional to 11,339.91, 16,999.23 and 7,167.87

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Solution

The fourth proportional to 11,339.91, 16,999.23 and 7,167.87 is: 10,745.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,339.91 : 16,999.23 = 7,167.87 : x
  2. Step 2: Convert to fraction form
    11,339.91/16,999.23 = 7,167.87/x
  3. Step 3: Cross multiply
    11,339.91x = 16,999.23 × 7,167.87
  4. Step 4: Simplify right side
    11,339.91x = 121,848,270.74
  5. Step 5: Solve for x
    x = 121,848,270.74/11,339.91
  6. Step 6: Final answer
    x = 10,745.08

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1.5x scale

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.