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Finding the Fourth Proportional to 8,141.79, 11,235.69 and 4,415.79

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Solution

The fourth proportional to 8,141.79, 11,235.69 and 4,415.79 is: 6,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,141.79 : 11,235.69 = 4,415.79 : x
  2. Step 2: Convert to fraction form
    8,141.79/11,235.69 = 4,415.79/x
  3. Step 3: Cross multiply
    8,141.79x = 11,235.69 × 4,415.79
  4. Step 4: Simplify right side
    8,141.79x = 49,614,447.55
  5. Step 5: Solve for x
    x = 49,614,447.55/8,141.79
  6. Step 6: Final answer
    x = 6,093.80

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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.