Home / 7,674.88-11,515.56-3,779.32

Finding the Fourth Proportional to 7,674.88, 11,515.56 and 3,779.32

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Solution

The fourth proportional to 7,674.88, 11,515.56 and 3,779.32 is: 5,670.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,674.88 : 11,515.56 = 3,779.32 : x
  2. Step 2: Convert to fraction form
    7,674.88/11,515.56 = 3,779.32/x
  3. Step 3: Cross multiply
    7,674.88x = 11,515.56 × 3,779.32
  4. Step 4: Simplify right side
    7,674.88x = 43,520,986.22
  5. Step 5: Solve for x
    x = 43,520,986.22/7,674.88
  6. Step 6: Final answer
    x = 5,670.58

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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.