Home / 12,628.39-17,431.01-7,324.51

Finding the Fourth Proportional to 12,628.39, 17,431.01 and 7,324.51

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Solution

The fourth proportional to 12,628.39, 17,431.01 and 7,324.51 is: 10,110.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.39 : 17,431.01 = 7,324.51 : x
  2. Step 2: Convert to fraction form
    12,628.39/17,431.01 = 7,324.51/x
  3. Step 3: Cross multiply
    12,628.39x = 17,431.01 × 7,324.51
  4. Step 4: Simplify right side
    12,628.39x = 127,673,570.43
  5. Step 5: Solve for x
    x = 127,673,570.43/12,628.39
  6. Step 6: Final answer
    x = 10,110.04

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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.