Home / 15,467.82-21,345.48-8,394.09

Finding the Fourth Proportional to 15,467.82, 21,345.48 and 8,394.09

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Solution

The fourth proportional to 15,467.82, 21,345.48 and 8,394.09 is: 11,583.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,467.82 : 21,345.48 = 8,394.09 : x
  2. Step 2: Convert to fraction form
    15,467.82/21,345.48 = 8,394.09/x
  3. Step 3: Cross multiply
    15,467.82x = 21,345.48 × 8,394.09
  4. Step 4: Simplify right side
    15,467.82x = 179,175,880.21
  5. Step 5: Solve for x
    x = 179,175,880.21/15,467.82
  6. Step 6: Final answer
    x = 11,583.78

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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.