Home / 12,642.44-18,954.54-3,872.57

Finding the Fourth Proportional to 12,642.44, 18,954.54 and 3,872.57

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Solution

The fourth proportional to 12,642.44, 18,954.54 and 3,872.57 is: 5,806.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,642.44 : 18,954.54 = 3,872.57 : x
  2. Step 2: Convert to fraction form
    12,642.44/18,954.54 = 3,872.57/x
  3. Step 3: Cross multiply
    12,642.44x = 18,954.54 × 3,872.57
  4. Step 4: Simplify right side
    12,642.44x = 73,402,688.20
  5. Step 5: Solve for x
    x = 73,402,688.20/12,642.44
  6. Step 6: Final answer
    x = 5,806.06

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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.