Home / 13,112.88-19,662.96-4,791.60

Finding the Fourth Proportional to 13,112.88, 19,662.96 and 4,791.60

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Solution

The fourth proportional to 13,112.88, 19,662.96 and 4,791.60 is: 7,185.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.88 : 19,662.96 = 4,791.60 : x
  2. Step 2: Convert to fraction form
    13,112.88/19,662.96 = 4,791.60/x
  3. Step 3: Cross multiply
    13,112.88x = 19,662.96 × 4,791.60
  4. Step 4: Simplify right side
    13,112.88x = 94,217,039.14
  5. Step 5: Solve for x
    x = 94,217,039.14/13,112.88
  6. Step 6: Final answer
    x = 7,185.08

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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.