Home / 13,389.22-20,076.81-4,622.05

Finding the Fourth Proportional to 13,389.22, 20,076.81 and 4,622.05

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Solution

The fourth proportional to 13,389.22, 20,076.81 and 4,622.05 is: 6,930.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.22 : 20,076.81 = 4,622.05 : x
  2. Step 2: Convert to fraction form
    13,389.22/20,076.81 = 4,622.05/x
  3. Step 3: Cross multiply
    13,389.22x = 20,076.81 × 4,622.05
  4. Step 4: Simplify right side
    13,389.22x = 92,796,019.66
  5. Step 5: Solve for x
    x = 92,796,019.66/13,389.22
  6. Step 6: Final answer
    x = 6,930.65

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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.