Home / 11,786.76-16,261.12-6,748.28

Finding the Fourth Proportional to 11,786.76, 16,261.12 and 6,748.28

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Solution

The fourth proportional to 11,786.76, 16,261.12 and 6,748.28 is: 9,309.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,786.76 : 16,261.12 = 6,748.28 : x
  2. Step 2: Convert to fraction form
    11,786.76/16,261.12 = 6,748.28/x
  3. Step 3: Cross multiply
    11,786.76x = 16,261.12 × 6,748.28
  4. Step 4: Simplify right side
    11,786.76x = 109,734,492.70
  5. Step 5: Solve for x
    x = 109,734,492.70/11,786.76
  6. Step 6: Final answer
    x = 9,309.98

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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.