Home / 13,739.55-20,610.84-4,377.37

Finding the Fourth Proportional to 13,739.55, 20,610.84 and 4,377.37

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Solution

The fourth proportional to 13,739.55, 20,610.84 and 4,377.37 is: 6,566.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.55 : 20,610.84 = 4,377.37 : x
  2. Step 2: Convert to fraction form
    13,739.55/20,610.84 = 4,377.37/x
  3. Step 3: Cross multiply
    13,739.55x = 20,610.84 × 4,377.37
  4. Step 4: Simplify right side
    13,739.55x = 90,221,147.75
  5. Step 5: Solve for x
    x = 90,221,147.75/13,739.55
  6. Step 6: Final answer
    x = 6,566.53

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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.