Home / 16,991.50-25,487.24-5,305.72

Finding the Fourth Proportional to 16,991.50, 25,487.24 and 5,305.72

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Solution

The fourth proportional to 16,991.50, 25,487.24 and 5,305.72 is: 7,958.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991.50 : 25,487.24 = 5,305.72 : x
  2. Step 2: Convert to fraction form
    16,991.50/25,487.24 = 5,305.72/x
  3. Step 3: Cross multiply
    16,991.50x = 25,487.24 × 5,305.72
  4. Step 4: Simplify right side
    16,991.50x = 135,228,159.01
  5. Step 5: Solve for x
    x = 135,228,159.01/16,991.50
  6. Step 6: Final answer
    x = 7,958.58

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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.