Home / 13,662.28-18,855.33-8,360.60

Finding the Fourth Proportional to 13,662.28, 18,855.33 and 8,360.60

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Solution

The fourth proportional to 13,662.28, 18,855.33 and 8,360.60 is: 11,538.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,662.28 : 18,855.33 = 8,360.60 : x
  2. Step 2: Convert to fraction form
    13,662.28/18,855.33 = 8,360.60/x
  3. Step 3: Cross multiply
    13,662.28x = 18,855.33 × 8,360.60
  4. Step 4: Simplify right side
    13,662.28x = 157,641,872.00
  5. Step 5: Solve for x
    x = 157,641,872.00/13,662.28
  6. Step 6: Final answer
    x = 11,538.48

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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.