Home / 12,268.26-18,411.60-8,989.80

Finding the Fourth Proportional to 12,268.26, 18,411.60 and 8,989.80

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Solution

The fourth proportional to 12,268.26, 18,411.60 and 8,989.80 is: 13,491.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,268.26 : 18,411.60 = 8,989.80 : x
  2. Step 2: Convert to fraction form
    12,268.26/18,411.60 = 8,989.80/x
  3. Step 3: Cross multiply
    12,268.26x = 18,411.60 × 8,989.80
  4. Step 4: Simplify right side
    12,268.26x = 165,516,601.68
  5. Step 5: Solve for x
    x = 165,516,601.68/12,268.26
  6. Step 6: Final answer
    x = 13,491.45

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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.