Home / 19,409.09-29,119.79-6,928.84

Finding the Fourth Proportional to 19,409.09, 29,119.79 and 6,928.84

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Solution

The fourth proportional to 19,409.09, 29,119.79 and 6,928.84 is: 10,395.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,409.09 : 29,119.79 = 6,928.84 : x
  2. Step 2: Convert to fraction form
    19,409.09/29,119.79 = 6,928.84/x
  3. Step 3: Cross multiply
    19,409.09x = 29,119.79 × 6,928.84
  4. Step 4: Simplify right side
    19,409.09x = 201,766,399.98
  5. Step 5: Solve for x
    x = 201,766,399.98/19,409.09
  6. Step 6: Final answer
    x = 10,395.46

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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.