Home / 12,857.36-17,742.48-7,268

Finding the Fourth Proportional to 12,857.36, 17,742.48 and 7,268

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Solution

The fourth proportional to 12,857.36, 17,742.48 and 7,268 is: 10,029.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,857.36 : 17,742.48 = 7,268 : x
  2. Step 2: Convert to fraction form
    12,857.36/17,742.48 = 7,268/x
  3. Step 3: Cross multiply
    12,857.36x = 17,742.48 × 7,268
  4. Step 4: Simplify right side
    12,857.36x = 128,952,344.64
  5. Step 5: Solve for x
    x = 128,952,344.64/12,857.36
  6. Step 6: Final answer
    x = 10,029.46

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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.