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Finding the Fourth Proportional to 8,646.72, 12,968.01 and 3,963.81

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Solution

The fourth proportional to 8,646.72, 12,968.01 and 3,963.81 is: 5,944.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,646.72 : 12,968.01 = 3,963.81 : x
  2. Step 2: Convert to fraction form
    8,646.72/12,968.01 = 3,963.81/x
  3. Step 3: Cross multiply
    8,646.72x = 12,968.01 × 3,963.81
  4. Step 4: Simplify right side
    8,646.72x = 51,402,727.72
  5. Step 5: Solve for x
    x = 51,402,727.72/8,646.72
  6. Step 6: Final answer
    x = 5,944.76

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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.