Home / 12,526.39-17,286.43-6,783.86

Finding the Fourth Proportional to 12,526.39, 17,286.43 and 6,783.86

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Solution

The fourth proportional to 12,526.39, 17,286.43 and 6,783.86 is: 9,361.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,526.39 : 17,286.43 = 6,783.86 : x
  2. Step 2: Convert to fraction form
    12,526.39/17,286.43 = 6,783.86/x
  3. Step 3: Cross multiply
    12,526.39x = 17,286.43 × 6,783.86
  4. Step 4: Simplify right side
    12,526.39x = 117,268,634.59
  5. Step 5: Solve for x
    x = 117,268,634.59/12,526.39
  6. Step 6: Final answer
    x = 9,361.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.