Home / 12,136.88-16,748.72-6,759.28

Finding the Fourth Proportional to 12,136.88, 16,748.72 and 6,759.28

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Solution

The fourth proportional to 12,136.88, 16,748.72 and 6,759.28 is: 9,327.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,136.88 : 16,748.72 = 6,759.28 : x
  2. Step 2: Convert to fraction form
    12,136.88/16,748.72 = 6,759.28/x
  3. Step 3: Cross multiply
    12,136.88x = 16,748.72 × 6,759.28
  4. Step 4: Simplify right side
    12,136.88x = 113,209,288.12
  5. Step 5: Solve for x
    x = 113,209,288.12/12,136.88
  6. Step 6: Final answer
    x = 9,327.71

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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.