Home / 18,433.68-25,428.78-12,467.36

Finding the Fourth Proportional to 18,433.68, 25,428.78 and 12,467.36

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Solution

The fourth proportional to 18,433.68, 25,428.78 and 12,467.36 is: 17,198.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,433.68 : 25,428.78 = 12,467.36 : x
  2. Step 2: Convert to fraction form
    18,433.68/25,428.78 = 12,467.36/x
  3. Step 3: Cross multiply
    18,433.68x = 25,428.78 × 12,467.36
  4. Step 4: Simplify right side
    18,433.68x = 317,029,627.48
  5. Step 5: Solve for x
    x = 317,029,627.48/18,433.68
  6. Step 6: Final answer
    x = 17,198.39

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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.