Home / 11,319.28-16,979.83-4,302.65

Finding the Fourth Proportional to 11,319.28, 16,979.83 and 4,302.65

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Solution

The fourth proportional to 11,319.28, 16,979.83 and 4,302.65 is: 6,454.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.28 : 16,979.83 = 4,302.65 : x
  2. Step 2: Convert to fraction form
    11,319.28/16,979.83 = 4,302.65/x
  3. Step 3: Cross multiply
    11,319.28x = 16,979.83 × 4,302.65
  4. Step 4: Simplify right side
    11,319.28x = 73,058,297.24
  5. Step 5: Solve for x
    x = 73,058,297.24/11,319.28
  6. Step 6: Final answer
    x = 6,454.33

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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.