Home / 11,415.24-15,751.20-6,936.60

Finding the Fourth Proportional to 11,415.24, 15,751.20 and 6,936.60

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Solution

The fourth proportional to 11,415.24, 15,751.20 and 6,936.60 is: 9,571.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,415.24 : 15,751.20 = 6,936.60 : x
  2. Step 2: Convert to fraction form
    11,415.24/15,751.20 = 6,936.60/x
  3. Step 3: Cross multiply
    11,415.24x = 15,751.20 × 6,936.60
  4. Step 4: Simplify right side
    11,415.24x = 109,259,773.92
  5. Step 5: Solve for x
    x = 109,259,773.92/11,415.24
  6. Step 6: Final answer
    x = 9,571.40

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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.