Home / 13,328.74-19,997.09-3,969.08

Finding the Fourth Proportional to 13,328.74, 19,997.09 and 3,969.08

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Solution

The fourth proportional to 13,328.74, 19,997.09 and 3,969.08 is: 5,954.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.74 : 19,997.09 = 3,969.08 : x
  2. Step 2: Convert to fraction form
    13,328.74/19,997.09 = 3,969.08/x
  3. Step 3: Cross multiply
    13,328.74x = 19,997.09 × 3,969.08
  4. Step 4: Simplify right side
    13,328.74x = 79,370,049.98
  5. Step 5: Solve for x
    x = 79,370,049.98/13,328.74
  6. Step 6: Final answer
    x = 5,954.81

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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.