Home / 7,421.96-11,133.48-3,039.44

Finding the Fourth Proportional to 7,421.96, 11,133.48 and 3,039.44

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Solution

The fourth proportional to 7,421.96, 11,133.48 and 3,039.44 is: 4,559.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.96 : 11,133.48 = 3,039.44 : x
  2. Step 2: Convert to fraction form
    7,421.96/11,133.48 = 3,039.44/x
  3. Step 3: Cross multiply
    7,421.96x = 11,133.48 × 3,039.44
  4. Step 4: Simplify right side
    7,421.96x = 33,839,544.45
  5. Step 5: Solve for x
    x = 33,839,544.45/7,421.96
  6. Step 6: Final answer
    x = 4,559.38

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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.