Home / 13,930.76-20,899.24-6,914.60

Finding the Fourth Proportional to 13,930.76, 20,899.24 and 6,914.60

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Solution

The fourth proportional to 13,930.76, 20,899.24 and 6,914.60 is: 10,373.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930.76 : 20,899.24 = 6,914.60 : x
  2. Step 2: Convert to fraction form
    13,930.76/20,899.24 = 6,914.60/x
  3. Step 3: Cross multiply
    13,930.76x = 20,899.24 × 6,914.60
  4. Step 4: Simplify right side
    13,930.76x = 144,509,884.90
  5. Step 5: Solve for x
    x = 144,509,884.90/13,930.76
  6. Step 6: Final answer
    x = 10,373.44

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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.