Home / 12,912.76-19,361.58-9,238.60

Finding the Fourth Proportional to 12,912.76, 19,361.58 and 9,238.60

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Solution

The fourth proportional to 12,912.76, 19,361.58 and 9,238.60 is: 13,852.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912.76 : 19,361.58 = 9,238.60 : x
  2. Step 2: Convert to fraction form
    12,912.76/19,361.58 = 9,238.60/x
  3. Step 3: Cross multiply
    12,912.76x = 19,361.58 × 9,238.60
  4. Step 4: Simplify right side
    12,912.76x = 178,873,892.99
  5. Step 5: Solve for x
    x = 178,873,892.99/12,912.76
  6. Step 6: Final answer
    x = 13,852.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.