Home / 14,791.37-20,412.14-8,076.78

Finding the Fourth Proportional to 14,791.37, 20,412.14 and 8,076.78

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Solution

The fourth proportional to 14,791.37, 20,412.14 and 8,076.78 is: 11,145.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,791.37 : 20,412.14 = 8,076.78 : x
  2. Step 2: Convert to fraction form
    14,791.37/20,412.14 = 8,076.78/x
  3. Step 3: Cross multiply
    14,791.37x = 20,412.14 × 8,076.78
  4. Step 4: Simplify right side
    14,791.37x = 164,864,323.73
  5. Step 5: Solve for x
    x = 164,864,323.73/14,791.37
  6. Step 6: Final answer
    x = 11,145.98

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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.