Home / 13,769.15-20,654.51-3,907.64

Finding the Fourth Proportional to 13,769.15, 20,654.51 and 3,907.64

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Solution

The fourth proportional to 13,769.15, 20,654.51 and 3,907.64 is: 5,861.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.15 : 20,654.51 = 3,907.64 : x
  2. Step 2: Convert to fraction form
    13,769.15/20,654.51 = 3,907.64/x
  3. Step 3: Cross multiply
    13,769.15x = 20,654.51 × 3,907.64
  4. Step 4: Simplify right side
    13,769.15x = 80,710,266.65
  5. Step 5: Solve for x
    x = 80,710,266.65/13,769.15
  6. Step 6: Final answer
    x = 5,861.68

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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.