Home / 12,732.10-19,099.78-4,939.90

Finding the Fourth Proportional to 12,732.10, 19,099.78 and 4,939.90

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Solution

The fourth proportional to 12,732.10, 19,099.78 and 4,939.90 is: 7,410.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,732.10 : 19,099.78 = 4,939.90 : x
  2. Step 2: Convert to fraction form
    12,732.10/19,099.78 = 4,939.90/x
  3. Step 3: Cross multiply
    12,732.10x = 19,099.78 × 4,939.90
  4. Step 4: Simplify right side
    12,732.10x = 94,351,003.22
  5. Step 5: Solve for x
    x = 94,351,003.22/12,732.10
  6. Step 6: Final answer
    x = 7,410.48

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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.