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Finding the Fourth Proportional to 19,647, 29,431.08 and 9,756.36

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Solution

The fourth proportional to 19,647, 29,431.08 and 9,756.36 is: 14,614.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,647 : 29,431.08 = 9,756.36 : x
  2. Step 2: Convert to fraction form
    19,647/29,431.08 = 9,756.36/x
  3. Step 3: Cross multiply
    19,647x = 29,431.08 × 9,756.36
  4. Step 4: Simplify right side
    19,647x = 287,140,211.67
  5. Step 5: Solve for x
    x = 287,140,211.67/19,647
  6. Step 6: Final answer
    x = 14,614.96

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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.