Home / 13,726.24-18,935.24-8,681.96

Finding the Fourth Proportional to 13,726.24, 18,935.24 and 8,681.96

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Solution

The fourth proportional to 13,726.24, 18,935.24 and 8,681.96 is: 11,976.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,726.24 : 18,935.24 = 8,681.96 : x
  2. Step 2: Convert to fraction form
    13,726.24/18,935.24 = 8,681.96/x
  3. Step 3: Cross multiply
    13,726.24x = 18,935.24 × 8,681.96
  4. Step 4: Simplify right side
    13,726.24x = 164,394,996.27
  5. Step 5: Solve for x
    x = 164,394,996.27/13,726.24
  6. Step 6: Final answer
    x = 11,976.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.