Home / 11,907.42-16,431.71-6,872.54

Finding the Fourth Proportional to 11,907.42, 16,431.71 and 6,872.54

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Solution

The fourth proportional to 11,907.42, 16,431.71 and 6,872.54 is: 9,483.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,907.42 : 16,431.71 = 6,872.54 : x
  2. Step 2: Convert to fraction form
    11,907.42/16,431.71 = 6,872.54/x
  3. Step 3: Cross multiply
    11,907.42x = 16,431.71 × 6,872.54
  4. Step 4: Simplify right side
    11,907.42x = 112,927,467.72
  5. Step 5: Solve for x
    x = 112,927,467.72/11,907.42
  6. Step 6: Final answer
    x = 9,483.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.