Home / 13,794.55-20,685.67-3,931.49

Finding the Fourth Proportional to 13,794.55, 20,685.67 and 3,931.49

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Solution

The fourth proportional to 13,794.55, 20,685.67 and 3,931.49 is: 5,895.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,794.55 : 20,685.67 = 3,931.49 : x
  2. Step 2: Convert to fraction form
    13,794.55/20,685.67 = 3,931.49/x
  3. Step 3: Cross multiply
    13,794.55x = 20,685.67 × 3,931.49
  4. Step 4: Simplify right side
    13,794.55x = 81,325,504.75
  5. Step 5: Solve for x
    x = 81,325,504.75/13,794.55
  6. Step 6: Final answer
    x = 5,895.48

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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.