Home / 12,654.90-17,336.93-12,181.64

Finding the Fourth Proportional to 12,654.90, 17,336.93 and 12,181.64

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Solution

The fourth proportional to 12,654.90, 17,336.93 and 12,181.64 is: 16,688.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,654.90 : 17,336.93 = 12,181.64 : x
  2. Step 2: Convert to fraction form
    12,654.90/17,336.93 = 12,181.64/x
  3. Step 3: Cross multiply
    12,654.90x = 17,336.93 × 12,181.64
  4. Step 4: Simplify right side
    12,654.90x = 211,192,092.37
  5. Step 5: Solve for x
    x = 211,192,092.37/12,654.90
  6. Step 6: Final answer
    x = 16,688.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.