Home / 13,912.80-19,202.48-9,435.36

Finding the Fourth Proportional to 13,912.80, 19,202.48 and 9,435.36

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Solution

The fourth proportional to 13,912.80, 19,202.48 and 9,435.36 is: 13,022.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.80 : 19,202.48 = 9,435.36 : x
  2. Step 2: Convert to fraction form
    13,912.80/19,202.48 = 9,435.36/x
  3. Step 3: Cross multiply
    13,912.80x = 19,202.48 × 9,435.36
  4. Step 4: Simplify right side
    13,912.80x = 181,182,311.69
  5. Step 5: Solve for x
    x = 181,182,311.69/13,912.80
  6. Step 6: Final answer
    x = 13,022.71

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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.