Home / 13,619.42-20,418.73-6,218.74

Finding the Fourth Proportional to 13,619.42, 20,418.73 and 6,218.74

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Solution

The fourth proportional to 13,619.42, 20,418.73 and 6,218.74 is: 9,323.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.42 : 20,418.73 = 6,218.74 : x
  2. Step 2: Convert to fraction form
    13,619.42/20,418.73 = 6,218.74/x
  3. Step 3: Cross multiply
    13,619.42x = 20,418.73 × 6,218.74
  4. Step 4: Simplify right side
    13,619.42x = 126,978,773.00
  5. Step 5: Solve for x
    x = 126,978,773.00/13,619.42
  6. Step 6: Final answer
    x = 9,323.36

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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.