Home / 13,728.39-18,932.94-10,704.25

Finding the Fourth Proportional to 13,728.39, 18,932.94 and 10,704.25

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Solution

The fourth proportional to 13,728.39, 18,932.94 and 10,704.25 is: 14,762.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728.39 : 18,932.94 = 10,704.25 : x
  2. Step 2: Convert to fraction form
    13,728.39/18,932.94 = 10,704.25/x
  3. Step 3: Cross multiply
    13,728.39x = 18,932.94 × 10,704.25
  4. Step 4: Simplify right side
    13,728.39x = 202,662,923.00
  5. Step 5: Solve for x
    x = 202,662,923.00/13,728.39
  6. Step 6: Final answer
    x = 14,762.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.