Home / 12,790.94-19,181.81-4,895.66

Finding the Fourth Proportional to 12,790.94, 19,181.81 and 4,895.66

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Solution

The fourth proportional to 12,790.94, 19,181.81 and 4,895.66 is: 7,341.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790.94 : 19,181.81 = 4,895.66 : x
  2. Step 2: Convert to fraction form
    12,790.94/19,181.81 = 4,895.66/x
  3. Step 3: Cross multiply
    12,790.94x = 19,181.81 × 4,895.66
  4. Step 4: Simplify right side
    12,790.94x = 93,907,680.14
  5. Step 5: Solve for x
    x = 93,907,680.14/12,790.94
  6. Step 6: Final answer
    x = 7,341.74

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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.