Home / 12,650.86-18,929.45-10,144.38

Finding the Fourth Proportional to 12,650.86, 18,929.45 and 10,144.38

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Solution

The fourth proportional to 12,650.86, 18,929.45 and 10,144.38 is: 15,179.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,650.86 : 18,929.45 = 10,144.38 : x
  2. Step 2: Convert to fraction form
    12,650.86/18,929.45 = 10,144.38/x
  3. Step 3: Cross multiply
    12,650.86x = 18,929.45 × 10,144.38
  4. Step 4: Simplify right side
    12,650.86x = 192,027,504.37
  5. Step 5: Solve for x
    x = 192,027,504.37/12,650.86
  6. Step 6: Final answer
    x = 15,179.01

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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.