Home / 12,650.96-18,972.12-7,968.08

Finding the Fourth Proportional to 12,650.96, 18,972.12 and 7,968.08

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Solution

The fourth proportional to 12,650.96, 18,972.12 and 7,968.08 is: 11,949.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,650.96 : 18,972.12 = 7,968.08 : x
  2. Step 2: Convert to fraction form
    12,650.96/18,972.12 = 7,968.08/x
  3. Step 3: Cross multiply
    12,650.96x = 18,972.12 × 7,968.08
  4. Step 4: Simplify right side
    12,650.96x = 151,171,369.93
  5. Step 5: Solve for x
    x = 151,171,369.93/12,650.96
  6. Step 6: Final answer
    x = 11,949.40

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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.