Home / 18,986.88-26,196.48-12,272.64

Finding the Fourth Proportional to 18,986.88, 26,196.48 and 12,272.64

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Solution

The fourth proportional to 18,986.88, 26,196.48 and 12,272.64 is: 16,932.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986.88 : 26,196.48 = 12,272.64 : x
  2. Step 2: Convert to fraction form
    18,986.88/26,196.48 = 12,272.64/x
  3. Step 3: Cross multiply
    18,986.88x = 26,196.48 × 12,272.64
  4. Step 4: Simplify right side
    18,986.88x = 321,499,968.31
  5. Step 5: Solve for x
    x = 321,499,968.31/18,986.88
  6. Step 6: Final answer
    x = 16,932.74

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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.