Home / 13,793.96-20,688.06-3,930.60

Finding the Fourth Proportional to 13,793.96, 20,688.06 and 3,930.60

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Solution

The fourth proportional to 13,793.96, 20,688.06 and 3,930.60 is: 5,895.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,793.96 : 20,688.06 = 3,930.60 : x
  2. Step 2: Convert to fraction form
    13,793.96/20,688.06 = 3,930.60/x
  3. Step 3: Cross multiply
    13,793.96x = 20,688.06 × 3,930.60
  4. Step 4: Simplify right side
    13,793.96x = 81,316,488.64
  5. Step 5: Solve for x
    x = 81,316,488.64/13,793.96
  6. Step 6: Final answer
    x = 5,895.08

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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.