Home / 16,991.82-23,448.99-9,438.64

Finding the Fourth Proportional to 16,991.82, 23,448.99 and 9,438.64

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Solution

The fourth proportional to 16,991.82, 23,448.99 and 9,438.64 is: 13,025.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991.82 : 23,448.99 = 9,438.64 : x
  2. Step 2: Convert to fraction form
    16,991.82/23,448.99 = 9,438.64/x
  3. Step 3: Cross multiply
    16,991.82x = 23,448.99 × 9,438.64
  4. Step 4: Simplify right side
    16,991.82x = 221,326,410.54
  5. Step 5: Solve for x
    x = 221,326,410.54/16,991.82
  6. Step 6: Final answer
    x = 13,025.47

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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.