Home / 8,218.53-12,328.47-2,670.44

Finding the Fourth Proportional to 8,218.53, 12,328.47 and 2,670.44

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Solution

The fourth proportional to 8,218.53, 12,328.47 and 2,670.44 is: 4,005.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.53 : 12,328.47 = 2,670.44 : x
  2. Step 2: Convert to fraction form
    8,218.53/12,328.47 = 2,670.44/x
  3. Step 3: Cross multiply
    8,218.53x = 12,328.47 × 2,670.44
  4. Step 4: Simplify right side
    8,218.53x = 32,922,377.78
  5. Step 5: Solve for x
    x = 32,922,377.78/8,218.53
  6. Step 6: Final answer
    x = 4,005.87

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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.