Home / 12,787.24-19,180.22-4,021.96

Finding the Fourth Proportional to 12,787.24, 19,180.22 and 4,021.96

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Solution

The fourth proportional to 12,787.24, 19,180.22 and 4,021.96 is: 6,032.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787.24 : 19,180.22 = 4,021.96 : x
  2. Step 2: Convert to fraction form
    12,787.24/19,180.22 = 4,021.96/x
  3. Step 3: Cross multiply
    12,787.24x = 19,180.22 × 4,021.96
  4. Step 4: Simplify right side
    12,787.24x = 77,142,077.63
  5. Step 5: Solve for x
    x = 77,142,077.63/12,787.24
  6. Step 6: Final answer
    x = 6,032.74

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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.