Home / 13,263.74-18,191.81-11,769.05

Finding the Fourth Proportional to 13,263.74, 18,191.81 and 11,769.05

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Solution

The fourth proportional to 13,263.74, 18,191.81 and 11,769.05 is: 16,141.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,263.74 : 18,191.81 = 11,769.05 : x
  2. Step 2: Convert to fraction form
    13,263.74/18,191.81 = 11,769.05/x
  3. Step 3: Cross multiply
    13,263.74x = 18,191.81 × 11,769.05
  4. Step 4: Simplify right side
    13,263.74x = 214,100,171.68
  5. Step 5: Solve for x
    x = 214,100,171.68/13,263.74
  6. Step 6: Final answer
    x = 16,141.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.