Home / 6,921.99-10,372.44-5,074.32

Finding the Fourth Proportional to 6,921.99, 10,372.44 and 5,074.32

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Solution

The fourth proportional to 6,921.99, 10,372.44 and 5,074.32 is: 7,603.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.99 : 10,372.44 = 5,074.32 : x
  2. Step 2: Convert to fraction form
    6,921.99/10,372.44 = 5,074.32/x
  3. Step 3: Cross multiply
    6,921.99x = 10,372.44 × 5,074.32
  4. Step 4: Simplify right side
    6,921.99x = 52,633,079.74
  5. Step 5: Solve for x
    x = 52,633,079.74/6,921.99
  6. Step 6: Final answer
    x = 7,603.75

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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.