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Finding the Fourth Proportional to 13,576, 18,736.38 and 7,608.22

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Solution

The fourth proportional to 13,576, 18,736.38 and 7,608.22 is: 10,500.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576 : 18,736.38 = 7,608.22 : x
  2. Step 2: Convert to fraction form
    13,576/18,736.38 = 7,608.22/x
  3. Step 3: Cross multiply
    13,576x = 18,736.38 × 7,608.22
  4. Step 4: Simplify right side
    13,576x = 142,550,501.04
  5. Step 5: Solve for x
    x = 142,550,501.04/13,576
  6. Step 6: Final answer
    x = 10,500.18

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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.