Home / 12,646.66-18,969.24-3,881.65

Finding the Fourth Proportional to 12,646.66, 18,969.24 and 3,881.65

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Solution

The fourth proportional to 12,646.66, 18,969.24 and 3,881.65 is: 5,822.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.66 : 18,969.24 = 3,881.65 : x
  2. Step 2: Convert to fraction form
    12,646.66/18,969.24 = 3,881.65/x
  3. Step 3: Cross multiply
    12,646.66x = 18,969.24 × 3,881.65
  4. Step 4: Simplify right side
    12,646.66x = 73,631,950.45
  5. Step 5: Solve for x
    x = 73,631,950.45/12,646.66
  6. Step 6: Final answer
    x = 5,822.24

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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.