Home / 18,917.45-26,097.30-12,205.23

Finding the Fourth Proportional to 18,917.45, 26,097.30 and 12,205.23

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Solution

The fourth proportional to 18,917.45, 26,097.30 and 12,205.23 is: 16,837.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,917.45 : 26,097.30 = 12,205.23 : x
  2. Step 2: Convert to fraction form
    18,917.45/26,097.30 = 12,205.23/x
  3. Step 3: Cross multiply
    18,917.45x = 26,097.30 × 12,205.23
  4. Step 4: Simplify right side
    18,917.45x = 318,523,548.88
  5. Step 5: Solve for x
    x = 318,523,548.88/18,917.45
  6. Step 6: Final answer
    x = 16,837.56

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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.