Home / 14,739.72-20,338.52-8,450.88

Finding the Fourth Proportional to 14,739.72, 20,338.52 and 8,450.88

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Solution

The fourth proportional to 14,739.72, 20,338.52 and 8,450.88 is: 11,660.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,739.72 : 20,338.52 = 8,450.88 : x
  2. Step 2: Convert to fraction form
    14,739.72/20,338.52 = 8,450.88/x
  3. Step 3: Cross multiply
    14,739.72x = 20,338.52 × 8,450.88
  4. Step 4: Simplify right side
    14,739.72x = 171,878,391.90
  5. Step 5: Solve for x
    x = 171,878,391.90/14,739.72
  6. Step 6: Final answer
    x = 11,660.90

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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.