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Finding the Fourth Proportional to 19,485, 29,218.92 and 6,154.68

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Solution

The fourth proportional to 19,485, 29,218.92 and 6,154.68 is: 9,229.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,485 : 29,218.92 = 6,154.68 : x
  2. Step 2: Convert to fraction form
    19,485/29,218.92 = 6,154.68/x
  3. Step 3: Cross multiply
    19,485x = 29,218.92 × 6,154.68
  4. Step 4: Simplify right side
    19,485x = 179,833,102.55
  5. Step 5: Solve for x
    x = 179,833,102.55/19,485
  6. Step 6: Final answer
    x = 9,229.31

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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.