Home / 13,770.88-20,653.40-3,907.48

Finding the Fourth Proportional to 13,770.88, 20,653.40 and 3,907.48

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Solution

The fourth proportional to 13,770.88, 20,653.40 and 3,907.48 is: 5,860.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,770.88 : 20,653.40 = 3,907.48 : x
  2. Step 2: Convert to fraction form
    13,770.88/20,653.40 = 3,907.48/x
  3. Step 3: Cross multiply
    13,770.88x = 20,653.40 × 3,907.48
  4. Step 4: Simplify right side
    13,770.88x = 80,702,747.43
  5. Step 5: Solve for x
    x = 80,702,747.43/13,770.88
  6. Step 6: Final answer
    x = 5,860.39

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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.