Home / 19,418.23-29,107.11-13,178.73

Finding the Fourth Proportional to 19,418.23, 29,107.11 and 13,178.73

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Solution

The fourth proportional to 19,418.23, 29,107.11 and 13,178.73 is: 19,754.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,418.23 : 29,107.11 = 13,178.73 : x
  2. Step 2: Convert to fraction form
    19,418.23/29,107.11 = 13,178.73/x
  3. Step 3: Cross multiply
    19,418.23x = 29,107.11 × 13,178.73
  4. Step 4: Simplify right side
    19,418.23x = 383,594,902.34
  5. Step 5: Solve for x
    x = 383,594,902.34/19,418.23
  6. Step 6: Final answer
    x = 19,754.37

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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.