Home / 13,285.44-18,313.56-11,160

Finding the Fourth Proportional to 13,285.44, 18,313.56 and 11,160

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Solution

The fourth proportional to 13,285.44, 18,313.56 and 11,160 is: 15,383.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.44 : 18,313.56 = 11,160 : x
  2. Step 2: Convert to fraction form
    13,285.44/18,313.56 = 11,160/x
  3. Step 3: Cross multiply
    13,285.44x = 18,313.56 × 11,160
  4. Step 4: Simplify right side
    13,285.44x = 204,379,329.60
  5. Step 5: Solve for x
    x = 204,379,329.60/13,285.44
  6. Step 6: Final answer
    x = 15,383.71

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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.