Home / 13,448.39-18,558.41-7,480.26

Finding the Fourth Proportional to 13,448.39, 18,558.41 and 7,480.26

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Solution

The fourth proportional to 13,448.39, 18,558.41 and 7,480.26 is: 10,322.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.39 : 18,558.41 = 7,480.26 : x
  2. Step 2: Convert to fraction form
    13,448.39/18,558.41 = 7,480.26/x
  3. Step 3: Cross multiply
    13,448.39x = 18,558.41 × 7,480.26
  4. Step 4: Simplify right side
    13,448.39x = 138,821,694.59
  5. Step 5: Solve for x
    x = 138,821,694.59/13,448.39
  6. Step 6: Final answer
    x = 10,322.56

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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.