Home / 13,726.03-18,941.71-7,438.41

Finding the Fourth Proportional to 13,726.03, 18,941.71 and 7,438.41

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Solution

The fourth proportional to 13,726.03, 18,941.71 and 7,438.41 is: 10,264.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,726.03 : 18,941.71 = 7,438.41 : x
  2. Step 2: Convert to fraction form
    13,726.03/18,941.71 = 7,438.41/x
  3. Step 3: Cross multiply
    13,726.03x = 18,941.71 × 7,438.41
  4. Step 4: Simplify right side
    13,726.03x = 140,896,205.08
  5. Step 5: Solve for x
    x = 140,896,205.08/13,726.03
  6. Step 6: Final answer
    x = 10,264.89

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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.