Home / 12,790.38-19,180.08-4,467.90

Finding the Fourth Proportional to 12,790.38, 19,180.08 and 4,467.90

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Solution

The fourth proportional to 12,790.38, 19,180.08 and 4,467.90 is: 6,699.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790.38 : 19,180.08 = 4,467.90 : x
  2. Step 2: Convert to fraction form
    12,790.38/19,180.08 = 4,467.90/x
  3. Step 3: Cross multiply
    12,790.38x = 19,180.08 × 4,467.90
  4. Step 4: Simplify right side
    12,790.38x = 85,694,679.43
  5. Step 5: Solve for x
    x = 85,694,679.43/12,790.38
  6. Step 6: Final answer
    x = 6,699.93

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1.5x scale

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.