Home / 12,317.70-18,479.48-3,997.74

Finding the Fourth Proportional to 12,317.70, 18,479.48 and 3,997.74

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Solution

The fourth proportional to 12,317.70, 18,479.48 and 3,997.74 is: 5,997.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,317.70 : 18,479.48 = 3,997.74 : x
  2. Step 2: Convert to fraction form
    12,317.70/18,479.48 = 3,997.74/x
  3. Step 3: Cross multiply
    12,317.70x = 18,479.48 × 3,997.74
  4. Step 4: Simplify right side
    12,317.70x = 73,876,136.39
  5. Step 5: Solve for x
    x = 73,876,136.39/12,317.70
  6. Step 6: Final answer
    x = 5,997.56

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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.