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Finding the Fourth Proportional to 8,745.67, 13,120.34 and 4,841.89

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Solution

The fourth proportional to 8,745.67, 13,120.34 and 4,841.89 is: 7,263.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.67 : 13,120.34 = 4,841.89 : x
  2. Step 2: Convert to fraction form
    8,745.67/13,120.34 = 4,841.89/x
  3. Step 3: Cross multiply
    8,745.67x = 13,120.34 × 4,841.89
  4. Step 4: Simplify right side
    8,745.67x = 63,527,218.83
  5. Step 5: Solve for x
    x = 63,527,218.83/8,745.67
  6. Step 6: Final answer
    x = 7,263.85

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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.