Home / 19,268.42-26,586.81-12,189.86

Finding the Fourth Proportional to 19,268.42, 26,586.81 and 12,189.86

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Solution

The fourth proportional to 19,268.42, 26,586.81 and 12,189.86 is: 16,819.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,268.42 : 26,586.81 = 12,189.86 : x
  2. Step 2: Convert to fraction form
    19,268.42/26,586.81 = 12,189.86/x
  3. Step 3: Cross multiply
    19,268.42x = 26,586.81 × 12,189.86
  4. Step 4: Simplify right side
    19,268.42x = 324,089,491.75
  5. Step 5: Solve for x
    x = 324,089,491.75/19,268.42
  6. Step 6: Final answer
    x = 16,819.72

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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.