Home / 12,152.67-16,777.94-8,791.98

Finding the Fourth Proportional to 12,152.67, 16,777.94 and 8,791.98

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Solution

The fourth proportional to 12,152.67, 16,777.94 and 8,791.98 is: 12,138.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152.67 : 16,777.94 = 8,791.98 : x
  2. Step 2: Convert to fraction form
    12,152.67/16,777.94 = 8,791.98/x
  3. Step 3: Cross multiply
    12,152.67x = 16,777.94 × 8,791.98
  4. Step 4: Simplify right side
    12,152.67x = 147,511,312.92
  5. Step 5: Solve for x
    x = 147,511,312.92/12,152.67
  6. Step 6: Final answer
    x = 12,138.18

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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.