Home / 13,726.83-18,942.35-7,676.67

Finding the Fourth Proportional to 13,726.83, 18,942.35 and 7,676.67

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Solution

The fourth proportional to 13,726.83, 18,942.35 and 7,676.67 is: 10,593.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,726.83 : 18,942.35 = 7,676.67 : x
  2. Step 2: Convert to fraction form
    13,726.83/18,942.35 = 7,676.67/x
  3. Step 3: Cross multiply
    13,726.83x = 18,942.35 × 7,676.67
  4. Step 4: Simplify right side
    13,726.83x = 145,414,131.59
  5. Step 5: Solve for x
    x = 145,414,131.59/13,726.83
  6. Step 6: Final answer
    x = 10,593.42

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1.5x scale

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.