Home / 11,685.24-16,125.72-6,380.08

Finding the Fourth Proportional to 11,685.24, 16,125.72 and 6,380.08

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Solution

The fourth proportional to 11,685.24, 16,125.72 and 6,380.08 is: 8,804.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,685.24 : 16,125.72 = 6,380.08 : x
  2. Step 2: Convert to fraction form
    11,685.24/16,125.72 = 6,380.08/x
  3. Step 3: Cross multiply
    11,685.24x = 16,125.72 × 6,380.08
  4. Step 4: Simplify right side
    11,685.24x = 102,883,383.66
  5. Step 5: Solve for x
    x = 102,883,383.66/11,685.24
  6. Step 6: Final answer
    x = 8,804.56

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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.