Home / 13,628.03-18,806.24-7,578.23

Finding the Fourth Proportional to 13,628.03, 18,806.24 and 7,578.23

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Solution

The fourth proportional to 13,628.03, 18,806.24 and 7,578.23 is: 10,457.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628.03 : 18,806.24 = 7,578.23 : x
  2. Step 2: Convert to fraction form
    13,628.03/18,806.24 = 7,578.23/x
  3. Step 3: Cross multiply
    13,628.03x = 18,806.24 × 7,578.23
  4. Step 4: Simplify right side
    13,628.03x = 142,517,974.26
  5. Step 5: Solve for x
    x = 142,517,974.26/13,628.03
  6. Step 6: Final answer
    x = 10,457.71

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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.