Home / 6,686.96-10,021.32-3,907.76

Finding the Fourth Proportional to 6,686.96, 10,021.32 and 3,907.76

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Solution

The fourth proportional to 6,686.96, 10,021.32 and 3,907.76 is: 5,856.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,686.96 : 10,021.32 = 3,907.76 : x
  2. Step 2: Convert to fraction form
    6,686.96/10,021.32 = 3,907.76/x
  3. Step 3: Cross multiply
    6,686.96x = 10,021.32 × 3,907.76
  4. Step 4: Simplify right side
    6,686.96x = 39,160,913.44
  5. Step 5: Solve for x
    x = 39,160,913.44/6,686.96
  6. Step 6: Final answer
    x = 5,856.31

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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.