Home / 11,323.12-16,979.21-4,747.54

Finding the Fourth Proportional to 11,323.12, 16,979.21 and 4,747.54

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Solution

The fourth proportional to 11,323.12, 16,979.21 and 4,747.54 is: 7,119.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,323.12 : 16,979.21 = 4,747.54 : x
  2. Step 2: Convert to fraction form
    11,323.12/16,979.21 = 4,747.54/x
  3. Step 3: Cross multiply
    11,323.12x = 16,979.21 × 4,747.54
  4. Step 4: Simplify right side
    11,323.12x = 80,609,370.01
  5. Step 5: Solve for x
    x = 80,609,370.01/11,323.12
  6. Step 6: Final answer
    x = 7,119.01

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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.