Home / 13,917.03-20,880.87-8,374.33

Finding the Fourth Proportional to 13,917.03, 20,880.87 and 8,374.33

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Solution

The fourth proportional to 13,917.03, 20,880.87 and 8,374.33 is: 12,564.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.03 : 20,880.87 = 8,374.33 : x
  2. Step 2: Convert to fraction form
    13,917.03/20,880.87 = 8,374.33/x
  3. Step 3: Cross multiply
    13,917.03x = 20,880.87 × 8,374.33
  4. Step 4: Simplify right side
    13,917.03x = 174,863,296.07
  5. Step 5: Solve for x
    x = 174,863,296.07/13,917.03
  6. Step 6: Final answer
    x = 12,564.70

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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.