Home / 6,786.93-10,165.34-5,215.36

Finding the Fourth Proportional to 6,786.93, 10,165.34 and 5,215.36

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Solution

The fourth proportional to 6,786.93, 10,165.34 and 5,215.36 is: 7,811.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,786.93 : 10,165.34 = 5,215.36 : x
  2. Step 2: Convert to fraction form
    6,786.93/10,165.34 = 5,215.36/x
  3. Step 3: Cross multiply
    6,786.93x = 10,165.34 × 5,215.36
  4. Step 4: Simplify right side
    6,786.93x = 53,015,907.62
  5. Step 5: Solve for x
    x = 53,015,907.62/6,786.93
  6. Step 6: Final answer
    x = 7,811.47

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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.