Home / 11,907.37-16,431.10-6,600.79

Finding the Fourth Proportional to 11,907.37, 16,431.10 and 6,600.79

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Solution

The fourth proportional to 11,907.37, 16,431.10 and 6,600.79 is: 9,108.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,907.37 : 16,431.10 = 6,600.79 : x
  2. Step 2: Convert to fraction form
    11,907.37/16,431.10 = 6,600.79/x
  3. Step 3: Cross multiply
    11,907.37x = 16,431.10 × 6,600.79
  4. Step 4: Simplify right side
    11,907.37x = 108,458,240.57
  5. Step 5: Solve for x
    x = 108,458,240.57/11,907.37
  6. Step 6: Final answer
    x = 9,108.50

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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.