Home / 13,900.18-20,850.34-3,511.94

Finding the Fourth Proportional to 13,900.18, 20,850.34 and 3,511.94

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Solution

The fourth proportional to 13,900.18, 20,850.34 and 3,511.94 is: 5,267.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.18 : 20,850.34 = 3,511.94 : x
  2. Step 2: Convert to fraction form
    13,900.18/20,850.34 = 3,511.94/x
  3. Step 3: Cross multiply
    13,900.18x = 20,850.34 × 3,511.94
  4. Step 4: Simplify right side
    13,900.18x = 73,225,143.06
  5. Step 5: Solve for x
    x = 73,225,143.06/13,900.18
  6. Step 6: Final answer
    x = 5,267.93

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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.