Home / 10,782.45-16,173.68-2,991.27

Finding the Fourth Proportional to 10,782.45, 16,173.68 and 2,991.27

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Solution

The fourth proportional to 10,782.45, 16,173.68 and 2,991.27 is: 4,486.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,782.45 : 16,173.68 = 2,991.27 : x
  2. Step 2: Convert to fraction form
    10,782.45/16,173.68 = 2,991.27/x
  3. Step 3: Cross multiply
    10,782.45x = 16,173.68 × 2,991.27
  4. Step 4: Simplify right side
    10,782.45x = 48,379,828.82
  5. Step 5: Solve for x
    x = 48,379,828.82/10,782.45
  6. Step 6: Final answer
    x = 4,486.91

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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.