Home / 12,122.93-16,729.57-6,817.80

Finding the Fourth Proportional to 12,122.93, 16,729.57 and 6,817.80

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Solution

The fourth proportional to 12,122.93, 16,729.57 and 6,817.80 is: 9,408.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.93 : 16,729.57 = 6,817.80 : x
  2. Step 2: Convert to fraction form
    12,122.93/16,729.57 = 6,817.80/x
  3. Step 3: Cross multiply
    12,122.93x = 16,729.57 × 6,817.80
  4. Step 4: Simplify right side
    12,122.93x = 114,058,933.60
  5. Step 5: Solve for x
    x = 114,058,933.60/12,122.93
  6. Step 6: Final answer
    x = 9,408.53

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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.