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Finding the Fourth Proportional to 19,788, 29,655.24 and 8,094.84

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Solution

The fourth proportional to 19,788, 29,655.24 and 8,094.84 is: 12,131.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,788 : 29,655.24 = 8,094.84 : x
  2. Step 2: Convert to fraction form
    19,788/29,655.24 = 8,094.84/x
  3. Step 3: Cross multiply
    19,788x = 29,655.24 × 8,094.84
  4. Step 4: Simplify right side
    19,788x = 240,054,422.96
  5. Step 5: Solve for x
    x = 240,054,422.96/19,788
  6. Step 6: Final answer
    x = 12,131.31

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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.