Home / 13,768.58-18,984.01-11,640.36

Finding the Fourth Proportional to 13,768.58, 18,984.01 and 11,640.36

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Solution

The fourth proportional to 13,768.58, 18,984.01 and 11,640.36 is: 16,049.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,768.58 : 18,984.01 = 11,640.36 : x
  2. Step 2: Convert to fraction form
    13,768.58/18,984.01 = 11,640.36/x
  3. Step 3: Cross multiply
    13,768.58x = 18,984.01 × 11,640.36
  4. Step 4: Simplify right side
    13,768.58x = 220,980,667.77
  5. Step 5: Solve for x
    x = 220,980,667.77/13,768.58
  6. Step 6: Final answer
    x = 16,049.63

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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.