Home / 13,763.85-20,641.73-3,903.99

Finding the Fourth Proportional to 13,763.85, 20,641.73 and 3,903.99

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Solution

The fourth proportional to 13,763.85, 20,641.73 and 3,903.99 is: 5,854.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.85 : 20,641.73 = 3,903.99 : x
  2. Step 2: Convert to fraction form
    13,763.85/20,641.73 = 3,903.99/x
  3. Step 3: Cross multiply
    13,763.85x = 20,641.73 × 3,903.99
  4. Step 4: Simplify right side
    13,763.85x = 80,585,087.98
  5. Step 5: Solve for x
    x = 80,585,087.98/13,763.85
  6. Step 6: Final answer
    x = 5,854.84

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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.