Home / 19,497.78-29,257.62-7,811.94

Finding the Fourth Proportional to 19,497.78, 29,257.62 and 7,811.94

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Solution

The fourth proportional to 19,497.78, 29,257.62 and 7,811.94 is: 11,722.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,497.78 : 29,257.62 = 7,811.94 : x
  2. Step 2: Convert to fraction form
    19,497.78/29,257.62 = 7,811.94/x
  3. Step 3: Cross multiply
    19,497.78x = 29,257.62 × 7,811.94
  4. Step 4: Simplify right side
    19,497.78x = 228,558,771.98
  5. Step 5: Solve for x
    x = 228,558,771.98/19,497.78
  6. Step 6: Final answer
    x = 11,722.30

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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.