Home / 18,845.22-28,268.10-8,985.54

Finding the Fourth Proportional to 18,845.22, 28,268.10 and 8,985.54

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Solution

The fourth proportional to 18,845.22, 28,268.10 and 8,985.54 is: 13,478.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,845.22 : 28,268.10 = 8,985.54 : x
  2. Step 2: Convert to fraction form
    18,845.22/28,268.10 = 8,985.54/x
  3. Step 3: Cross multiply
    18,845.22x = 28,268.10 × 8,985.54
  4. Step 4: Simplify right side
    18,845.22x = 254,004,143.27
  5. Step 5: Solve for x
    x = 254,004,143.27/18,845.22
  6. Step 6: Final answer
    x = 13,478.44

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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.