Home / 13,771.25-19,003.93-7,804.85

Finding the Fourth Proportional to 13,771.25, 19,003.93 and 7,804.85

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Solution

The fourth proportional to 13,771.25, 19,003.93 and 7,804.85 is: 10,770.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771.25 : 19,003.93 = 7,804.85 : x
  2. Step 2: Convert to fraction form
    13,771.25/19,003.93 = 7,804.85/x
  3. Step 3: Cross multiply
    13,771.25x = 19,003.93 × 7,804.85
  4. Step 4: Simplify right side
    13,771.25x = 148,322,708.53
  5. Step 5: Solve for x
    x = 148,322,708.53/13,771.25
  6. Step 6: Final answer
    x = 10,770.46

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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.