Home / 11,136.96-15,363.64-7,361.60

Finding the Fourth Proportional to 11,136.96, 15,363.64 and 7,361.60

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Solution

The fourth proportional to 11,136.96, 15,363.64 and 7,361.60 is: 10,155.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136.96 : 15,363.64 = 7,361.60 : x
  2. Step 2: Convert to fraction form
    11,136.96/15,363.64 = 7,361.60/x
  3. Step 3: Cross multiply
    11,136.96x = 15,363.64 × 7,361.60
  4. Step 4: Simplify right side
    11,136.96x = 113,100,972.22
  5. Step 5: Solve for x
    x = 113,100,972.22/11,136.96
  6. Step 6: Final answer
    x = 10,155.46

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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.