Home / 13,769.22-20,654.60-3,907.72

Finding the Fourth Proportional to 13,769.22, 20,654.60 and 3,907.72

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Solution

The fourth proportional to 13,769.22, 20,654.60 and 3,907.72 is: 5,861.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.22 : 20,654.60 = 3,907.72 : x
  2. Step 2: Convert to fraction form
    13,769.22/20,654.60 = 3,907.72/x
  3. Step 3: Cross multiply
    13,769.22x = 20,654.60 × 3,907.72
  4. Step 4: Simplify right side
    13,769.22x = 80,712,393.51
  5. Step 5: Solve for x
    x = 80,712,393.51/13,769.22
  6. Step 6: Final answer
    x = 5,861.80

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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.