Home / 13,923.60-20,868.12-6,896.04

Finding the Fourth Proportional to 13,923.60, 20,868.12 and 6,896.04

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Solution

The fourth proportional to 13,923.60, 20,868.12 and 6,896.04 is: 10,335.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923.60 : 20,868.12 = 6,896.04 : x
  2. Step 2: Convert to fraction form
    13,923.60/20,868.12 = 6,896.04/x
  3. Step 3: Cross multiply
    13,923.60x = 20,868.12 × 6,896.04
  4. Step 4: Simplify right side
    13,923.60x = 143,907,390.24
  5. Step 5: Solve for x
    x = 143,907,390.24/13,923.60
  6. Step 6: Final answer
    x = 10,335.50

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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.