Home / 13,311.36-19,969.92-3,952.08

Finding the Fourth Proportional to 13,311.36, 19,969.92 and 3,952.08

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Solution

The fourth proportional to 13,311.36, 19,969.92 and 3,952.08 is: 5,928.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311.36 : 19,969.92 = 3,952.08 : x
  2. Step 2: Convert to fraction form
    13,311.36/19,969.92 = 3,952.08/x
  3. Step 3: Cross multiply
    13,311.36x = 19,969.92 × 3,952.08
  4. Step 4: Simplify right side
    13,311.36x = 78,922,721.43
  5. Step 5: Solve for x
    x = 78,922,721.43/13,311.36
  6. Step 6: Final answer
    x = 5,928.98

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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.