Home / 12,642.38-18,949.44-4,737.29

Finding the Fourth Proportional to 12,642.38, 18,949.44 and 4,737.29

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Solution

The fourth proportional to 12,642.38, 18,949.44 and 4,737.29 is: 7,100.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,642.38 : 18,949.44 = 4,737.29 : x
  2. Step 2: Convert to fraction form
    12,642.38/18,949.44 = 4,737.29/x
  3. Step 3: Cross multiply
    12,642.38x = 18,949.44 × 4,737.29
  4. Step 4: Simplify right side
    12,642.38x = 89,768,992.62
  5. Step 5: Solve for x
    x = 89,768,992.62/12,642.38
  6. Step 6: Final answer
    x = 7,100.64

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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.