Home / 12,629.72-17,427.05-7,323.51

Finding the Fourth Proportional to 12,629.72, 17,427.05 and 7,323.51

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Solution

The fourth proportional to 12,629.72, 17,427.05 and 7,323.51 is: 10,105.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.72 : 17,427.05 = 7,323.51 : x
  2. Step 2: Convert to fraction form
    12,629.72/17,427.05 = 7,323.51/x
  3. Step 3: Cross multiply
    12,629.72x = 17,427.05 × 7,323.51
  4. Step 4: Simplify right side
    12,629.72x = 127,627,231.14
  5. Step 5: Solve for x
    x = 127,627,231.14/12,629.72
  6. Step 6: Final answer
    x = 10,105.31

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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.