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Finding the Fourth Proportional to 19,392.78, 29,092.14 and 8,299.50

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Solution

The fourth proportional to 19,392.78, 29,092.14 and 8,299.50 is: 12,450.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,392.78 : 29,092.14 = 8,299.50 : x
  2. Step 2: Convert to fraction form
    19,392.78/29,092.14 = 8,299.50/x
  3. Step 3: Cross multiply
    19,392.78x = 29,092.14 × 8,299.50
  4. Step 4: Simplify right side
    19,392.78x = 241,450,215.93
  5. Step 5: Solve for x
    x = 241,450,215.93/19,392.78
  6. Step 6: Final answer
    x = 12,450.52

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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.