Home / 14,768.04-20,379.11-8,393.78

Finding the Fourth Proportional to 14,768.04, 20,379.11 and 8,393.78

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Solution

The fourth proportional to 14,768.04, 20,379.11 and 8,393.78 is: 11,582.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,768.04 : 20,379.11 = 8,393.78 : x
  2. Step 2: Convert to fraction form
    14,768.04/20,379.11 = 8,393.78/x
  3. Step 3: Cross multiply
    14,768.04x = 20,379.11 × 8,393.78
  4. Step 4: Simplify right side
    14,768.04x = 171,057,765.94
  5. Step 5: Solve for x
    x = 171,057,765.94/14,768.04
  6. Step 6: Final answer
    x = 11,582.97

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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.