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Finding the Fourth Proportional to 11,855.94, 17,778.03 and 7,353.45

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Solution

The fourth proportional to 11,855.94, 17,778.03 and 7,353.45 is: 11,026.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,855.94 : 17,778.03 = 7,353.45 : x
  2. Step 2: Convert to fraction form
    11,855.94/17,778.03 = 7,353.45/x
  3. Step 3: Cross multiply
    11,855.94x = 17,778.03 × 7,353.45
  4. Step 4: Simplify right side
    11,855.94x = 130,729,854.70
  5. Step 5: Solve for x
    x = 130,729,854.70/11,855.94
  6. Step 6: Final answer
    x = 11,026.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.