Home / 11,571.12-17,355.24-3,779.28

Finding the Fourth Proportional to 11,571.12, 17,355.24 and 3,779.28

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Solution

The fourth proportional to 11,571.12, 17,355.24 and 3,779.28 is: 5,668.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,571.12 : 17,355.24 = 3,779.28 : x
  2. Step 2: Convert to fraction form
    11,571.12/17,355.24 = 3,779.28/x
  3. Step 3: Cross multiply
    11,571.12x = 17,355.24 × 3,779.28
  4. Step 4: Simplify right side
    11,571.12x = 65,590,311.43
  5. Step 5: Solve for x
    x = 65,590,311.43/11,571.12
  6. Step 6: Final answer
    x = 5,668.45

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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.