Home / 14,481.62-19,974.33-13,290.45

Finding the Fourth Proportional to 14,481.62, 19,974.33 and 13,290.45

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Solution

The fourth proportional to 14,481.62, 19,974.33 and 13,290.45 is: 18,331.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,481.62 : 19,974.33 = 13,290.45 : x
  2. Step 2: Convert to fraction form
    14,481.62/19,974.33 = 13,290.45/x
  3. Step 3: Cross multiply
    14,481.62x = 19,974.33 × 13,290.45
  4. Step 4: Simplify right side
    14,481.62x = 265,467,834.15
  5. Step 5: Solve for x
    x = 265,467,834.15/14,481.62
  6. Step 6: Final answer
    x = 18,331.36

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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.