Home / 13,515.75-20,268.45-6,493.77

Finding the Fourth Proportional to 13,515.75, 20,268.45 and 6,493.77

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Solution

The fourth proportional to 13,515.75, 20,268.45 and 6,493.77 is: 9,738.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.75 : 20,268.45 = 6,493.77 : x
  2. Step 2: Convert to fraction form
    13,515.75/20,268.45 = 6,493.77/x
  3. Step 3: Cross multiply
    13,515.75x = 20,268.45 × 6,493.77
  4. Step 4: Simplify right side
    13,515.75x = 131,618,652.56
  5. Step 5: Solve for x
    x = 131,618,652.56/13,515.75
  6. Step 6: Final answer
    x = 9,738.17

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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.