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Finding the Fourth Proportional to 19,662, 29,497.84 and 6,515.68

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Solution

The fourth proportional to 19,662, 29,497.84 and 6,515.68 is: 9,775.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,662 : 29,497.84 = 6,515.68 : x
  2. Step 2: Convert to fraction form
    19,662/29,497.84 = 6,515.68/x
  3. Step 3: Cross multiply
    19,662x = 29,497.84 × 6,515.68
  4. Step 4: Simplify right side
    19,662x = 192,198,486.13
  5. Step 5: Solve for x
    x = 192,198,486.13/19,662
  6. Step 6: Final answer
    x = 9,775.12

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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.