Home / 13,608.82-18,777.03-7,941.34

Finding the Fourth Proportional to 13,608.82, 18,777.03 and 7,941.34

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Solution

The fourth proportional to 13,608.82, 18,777.03 and 7,941.34 is: 10,957.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.82 : 18,777.03 = 7,941.34 : x
  2. Step 2: Convert to fraction form
    13,608.82/18,777.03 = 7,941.34/x
  3. Step 3: Cross multiply
    13,608.82x = 18,777.03 × 7,941.34
  4. Step 4: Simplify right side
    13,608.82x = 149,114,685.54
  5. Step 5: Solve for x
    x = 149,114,685.54/13,608.82
  6. Step 6: Final answer
    x = 10,957.21

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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.