Home / 12,418.03-18,639.33-10,105.26

Finding the Fourth Proportional to 12,418.03, 18,639.33 and 10,105.26

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Solution

The fourth proportional to 12,418.03, 18,639.33 and 10,105.26 is: 15,167.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,418.03 : 18,639.33 = 10,105.26 : x
  2. Step 2: Convert to fraction form
    12,418.03/18,639.33 = 10,105.26/x
  3. Step 3: Cross multiply
    12,418.03x = 18,639.33 × 10,105.26
  4. Step 4: Simplify right side
    12,418.03x = 188,355,275.88
  5. Step 5: Solve for x
    x = 188,355,275.88/12,418.03
  6. Step 6: Final answer
    x = 15,167.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.