Home / 13,464.20-20,220.60-9,770.60

Finding the Fourth Proportional to 13,464.20, 20,220.60 and 9,770.60

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Solution

The fourth proportional to 13,464.20, 20,220.60 and 9,770.60 is: 14,673.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,464.20 : 20,220.60 = 9,770.60 : x
  2. Step 2: Convert to fraction form
    13,464.20/20,220.60 = 9,770.60/x
  3. Step 3: Cross multiply
    13,464.20x = 20,220.60 × 9,770.60
  4. Step 4: Simplify right side
    13,464.20x = 197,567,394.36
  5. Step 5: Solve for x
    x = 197,567,394.36/13,464.20
  6. Step 6: Final answer
    x = 14,673.53

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1.5x scale

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.