Home / 11,337.12-16,979.76-7,176.96

Finding the Fourth Proportional to 11,337.12, 16,979.76 and 7,176.96

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Solution

The fourth proportional to 11,337.12, 16,979.76 and 7,176.96 is: 10,749.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,337.12 : 16,979.76 = 7,176.96 : x
  2. Step 2: Convert to fraction form
    11,337.12/16,979.76 = 7,176.96/x
  3. Step 3: Cross multiply
    11,337.12x = 16,979.76 × 7,176.96
  4. Step 4: Simplify right side
    11,337.12x = 121,863,058.33
  5. Step 5: Solve for x
    x = 121,863,058.33/11,337.12
  6. Step 6: Final answer
    x = 10,749.03

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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.