Home / 18,987.88-26,197.86-12,273.64

Finding the Fourth Proportional to 18,987.88, 26,197.86 and 12,273.64

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Solution

The fourth proportional to 18,987.88, 26,197.86 and 12,273.64 is: 16,934.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987.88 : 26,197.86 = 12,273.64 : x
  2. Step 2: Convert to fraction form
    18,987.88/26,197.86 = 12,273.64/x
  3. Step 3: Cross multiply
    18,987.88x = 26,197.86 × 12,273.64
  4. Step 4: Simplify right side
    18,987.88x = 321,543,102.41
  5. Step 5: Solve for x
    x = 321,543,102.41/18,987.88
  6. Step 6: Final answer
    x = 16,934.12

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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.