Home / 14,574.36-20,112.66-8,286.78

Finding the Fourth Proportional to 14,574.36, 20,112.66 and 8,286.78

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Solution

The fourth proportional to 14,574.36, 20,112.66 and 8,286.78 is: 11,435.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,574.36 : 20,112.66 = 8,286.78 : x
  2. Step 2: Convert to fraction form
    14,574.36/20,112.66 = 8,286.78/x
  3. Step 3: Cross multiply
    14,574.36x = 20,112.66 × 8,286.78
  4. Step 4: Simplify right side
    14,574.36x = 166,669,188.63
  5. Step 5: Solve for x
    x = 166,669,188.63/14,574.36
  6. Step 6: Final answer
    x = 11,435.78

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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.