Home / 13,486.22-18,603.37-8,441.69

Finding the Fourth Proportional to 13,486.22, 18,603.37 and 8,441.69

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Solution

The fourth proportional to 13,486.22, 18,603.37 and 8,441.69 is: 11,644.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486.22 : 18,603.37 = 8,441.69 : x
  2. Step 2: Convert to fraction form
    13,486.22/18,603.37 = 8,441.69/x
  3. Step 3: Cross multiply
    13,486.22x = 18,603.37 × 8,441.69
  4. Step 4: Simplify right side
    13,486.22x = 157,043,747.27
  5. Step 5: Solve for x
    x = 157,043,747.27/13,486.22
  6. Step 6: Final answer
    x = 11,644.75

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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.