Home / 13,643.97-20,441.61-7,400.00

Finding the Fourth Proportional to 13,643.97, 20,441.61 and 7,400.00

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Solution

The fourth proportional to 13,643.97, 20,441.61 and 7,400.00 is: 11,086.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,643.97 : 20,441.61 = 7,400.00 : x
  2. Step 2: Convert to fraction form
    13,643.97/20,441.61 = 7,400.00/x
  3. Step 3: Cross multiply
    13,643.97x = 20,441.61 × 7,400.00
  4. Step 4: Simplify right side
    13,643.97x = 151,268,004.26
  5. Step 5: Solve for x
    x = 151,268,004.26/13,643.97
  6. Step 6: Final answer
    x = 11,086.80

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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.