Home / 12,646.08-18,969.84-3,881.04

Finding the Fourth Proportional to 12,646.08, 18,969.84 and 3,881.04

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Solution

The fourth proportional to 12,646.08, 18,969.84 and 3,881.04 is: 5,821.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.08 : 18,969.84 = 3,881.04 : x
  2. Step 2: Convert to fraction form
    12,646.08/18,969.84 = 3,881.04/x
  3. Step 3: Cross multiply
    12,646.08x = 18,969.84 × 3,881.04
  4. Step 4: Simplify right side
    12,646.08x = 73,622,707.83
  5. Step 5: Solve for x
    x = 73,622,707.83/12,646.08
  6. Step 6: Final answer
    x = 5,821.78

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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.