Home / 18,890.82-28,327.32-6,408.72

Finding the Fourth Proportional to 18,890.82, 28,327.32 and 6,408.72

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Solution

The fourth proportional to 18,890.82, 28,327.32 and 6,408.72 is: 9,610.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.82 : 28,327.32 = 6,408.72 : x
  2. Step 2: Convert to fraction form
    18,890.82/28,327.32 = 6,408.72/x
  3. Step 3: Cross multiply
    18,890.82x = 28,327.32 × 6,408.72
  4. Step 4: Simplify right side
    18,890.82x = 181,541,862.23
  5. Step 5: Solve for x
    x = 181,541,862.23/18,890.82
  6. Step 6: Final answer
    x = 9,610.06

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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.