Home / 13,763.18-20,641.84-3,902.55

Finding the Fourth Proportional to 13,763.18, 20,641.84 and 3,902.55

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Solution

The fourth proportional to 13,763.18, 20,641.84 and 3,902.55 is: 5,852.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.18 : 20,641.84 = 3,902.55 : x
  2. Step 2: Convert to fraction form
    13,763.18/20,641.84 = 3,902.55/x
  3. Step 3: Cross multiply
    13,763.18x = 20,641.84 × 3,902.55
  4. Step 4: Simplify right side
    13,763.18x = 80,555,725.53
  5. Step 5: Solve for x
    x = 80,555,725.53/13,763.18
  6. Step 6: Final answer
    x = 5,852.99

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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.