Home / 13,726.40-18,928.28-11,743.52

Finding the Fourth Proportional to 13,726.40, 18,928.28 and 11,743.52

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Solution

The fourth proportional to 13,726.40, 18,928.28 and 11,743.52 is: 16,193.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,726.40 : 18,928.28 = 11,743.52 : x
  2. Step 2: Convert to fraction form
    13,726.40/18,928.28 = 11,743.52/x
  3. Step 3: Cross multiply
    13,726.40x = 18,928.28 × 11,743.52
  4. Step 4: Simplify right side
    13,726.40x = 222,284,569.46
  5. Step 5: Solve for x
    x = 222,284,569.46/13,726.40
  6. Step 6: Final answer
    x = 16,193.95

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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.