Home / 12,072.64-18,111.09-4,175.95

Finding the Fourth Proportional to 12,072.64, 18,111.09 and 4,175.95

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Solution

The fourth proportional to 12,072.64, 18,111.09 and 4,175.95 is: 6,264.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072.64 : 18,111.09 = 4,175.95 : x
  2. Step 2: Convert to fraction form
    12,072.64/18,111.09 = 4,175.95/x
  3. Step 3: Cross multiply
    12,072.64x = 18,111.09 × 4,175.95
  4. Step 4: Simplify right side
    12,072.64x = 75,631,006.29
  5. Step 5: Solve for x
    x = 75,631,006.29/12,072.64
  6. Step 6: Final answer
    x = 6,264.66

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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.