Home / 11,890.01-16,408.32-7,173.38

Finding the Fourth Proportional to 11,890.01, 16,408.32 and 7,173.38

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Solution

The fourth proportional to 11,890.01, 16,408.32 and 7,173.38 is: 9,899.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.01 : 16,408.32 = 7,173.38 : x
  2. Step 2: Convert to fraction form
    11,890.01/16,408.32 = 7,173.38/x
  3. Step 3: Cross multiply
    11,890.01x = 16,408.32 × 7,173.38
  4. Step 4: Simplify right side
    11,890.01x = 117,703,032.48
  5. Step 5: Solve for x
    x = 117,703,032.48/11,890.01
  6. Step 6: Final answer
    x = 9,899.33

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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.