Home / 13,380.60-20,083.23-6,811.50

Finding the Fourth Proportional to 13,380.60, 20,083.23 and 6,811.50

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Solution

The fourth proportional to 13,380.60, 20,083.23 and 6,811.50 is: 10,223.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.60 : 20,083.23 = 6,811.50 : x
  2. Step 2: Convert to fraction form
    13,380.60/20,083.23 = 6,811.50/x
  3. Step 3: Cross multiply
    13,380.60x = 20,083.23 × 6,811.50
  4. Step 4: Simplify right side
    13,380.60x = 136,796,921.15
  5. Step 5: Solve for x
    x = 136,796,921.15/13,380.60
  6. Step 6: Final answer
    x = 10,223.53

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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.