Home / 8,979.83-13,475.91-3,136.44

Finding the Fourth Proportional to 8,979.83, 13,475.91 and 3,136.44

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Solution

The fourth proportional to 8,979.83, 13,475.91 and 3,136.44 is: 4,706.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.83 : 13,475.91 = 3,136.44 : x
  2. Step 2: Convert to fraction form
    8,979.83/13,475.91 = 3,136.44/x
  3. Step 3: Cross multiply
    8,979.83x = 13,475.91 × 3,136.44
  4. Step 4: Simplify right side
    8,979.83x = 42,266,367.48
  5. Step 5: Solve for x
    x = 42,266,367.48/8,979.83
  6. Step 6: Final answer
    x = 4,706.81

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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.