Home / 13,396.32-20,074.08-6,812.64

Finding the Fourth Proportional to 13,396.32, 20,074.08 and 6,812.64

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Solution

The fourth proportional to 13,396.32, 20,074.08 and 6,812.64 is: 10,208.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,396.32 : 20,074.08 = 6,812.64 : x
  2. Step 2: Convert to fraction form
    13,396.32/20,074.08 = 6,812.64/x
  3. Step 3: Cross multiply
    13,396.32x = 20,074.08 × 6,812.64
  4. Step 4: Simplify right side
    13,396.32x = 136,757,480.37
  5. Step 5: Solve for x
    x = 136,757,480.37/13,396.32
  6. Step 6: Final answer
    x = 10,208.59

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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.