Home / 11,722.19-16,181.57-11,406.29

Finding the Fourth Proportional to 11,722.19, 16,181.57 and 11,406.29

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Solution

The fourth proportional to 11,722.19, 16,181.57 and 11,406.29 is: 15,745.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,722.19 : 16,181.57 = 11,406.29 : x
  2. Step 2: Convert to fraction form
    11,722.19/16,181.57 = 11,406.29/x
  3. Step 3: Cross multiply
    11,722.19x = 16,181.57 × 11,406.29
  4. Step 4: Simplify right side
    11,722.19x = 184,571,627.68
  5. Step 5: Solve for x
    x = 184,571,627.68/11,722.19
  6. Step 6: Final answer
    x = 15,745.50

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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.