Home / 18,672.08-28,021.05-7,426.27

Finding the Fourth Proportional to 18,672.08, 28,021.05 and 7,426.27

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Solution

The fourth proportional to 18,672.08, 28,021.05 and 7,426.27 is: 11,144.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,672.08 : 28,021.05 = 7,426.27 : x
  2. Step 2: Convert to fraction form
    18,672.08/28,021.05 = 7,426.27/x
  3. Step 3: Cross multiply
    18,672.08x = 28,021.05 × 7,426.27
  4. Step 4: Simplify right side
    18,672.08x = 208,091,742.88
  5. Step 5: Solve for x
    x = 208,091,742.88/18,672.08
  6. Step 6: Final answer
    x = 11,144.54

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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.