Home / 13,629.48-18,804.02-8,855.43

Finding the Fourth Proportional to 13,629.48, 18,804.02 and 8,855.43

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Solution

The fourth proportional to 13,629.48, 18,804.02 and 8,855.43 is: 12,217.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.48 : 18,804.02 = 8,855.43 : x
  2. Step 2: Convert to fraction form
    13,629.48/18,804.02 = 8,855.43/x
  3. Step 3: Cross multiply
    13,629.48x = 18,804.02 × 8,855.43
  4. Step 4: Simplify right side
    13,629.48x = 166,517,638.55
  5. Step 5: Solve for x
    x = 166,517,638.55/13,629.48
  6. Step 6: Final answer
    x = 12,217.46

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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.