Home / 13,820.22-20,726.67-5,499.90

Finding the Fourth Proportional to 13,820.22, 20,726.67 and 5,499.90

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Solution

The fourth proportional to 13,820.22, 20,726.67 and 5,499.90 is: 8,248.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,820.22 : 20,726.67 = 5,499.90 : x
  2. Step 2: Convert to fraction form
    13,820.22/20,726.67 = 5,499.90/x
  3. Step 3: Cross multiply
    13,820.22x = 20,726.67 × 5,499.90
  4. Step 4: Simplify right side
    13,820.22x = 113,994,612.33
  5. Step 5: Solve for x
    x = 113,994,612.33/13,820.22
  6. Step 6: Final answer
    x = 8,248.39

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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.