Home / 12,578.02-18,866.97-3,218.02

Finding the Fourth Proportional to 12,578.02, 18,866.97 and 3,218.02

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Solution

The fourth proportional to 12,578.02, 18,866.97 and 3,218.02 is: 4,827.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,578.02 : 18,866.97 = 3,218.02 : x
  2. Step 2: Convert to fraction form
    12,578.02/18,866.97 = 3,218.02/x
  3. Step 3: Cross multiply
    12,578.02x = 18,866.97 × 3,218.02
  4. Step 4: Simplify right side
    12,578.02x = 60,714,239.63
  5. Step 5: Solve for x
    x = 60,714,239.63/12,578.02
  6. Step 6: Final answer
    x = 4,827.01

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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.