Home / 11,780.81-16,257.56-6,745.11

Finding the Fourth Proportional to 11,780.81, 16,257.56 and 6,745.11

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Solution

The fourth proportional to 11,780.81, 16,257.56 and 6,745.11 is: 9,308.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,780.81 : 16,257.56 = 6,745.11 : x
  2. Step 2: Convert to fraction form
    11,780.81/16,257.56 = 6,745.11/x
  3. Step 3: Cross multiply
    11,780.81x = 16,257.56 × 6,745.11
  4. Step 4: Simplify right side
    11,780.81x = 109,658,996.81
  5. Step 5: Solve for x
    x = 109,658,996.81/11,780.81
  6. Step 6: Final answer
    x = 9,308.27

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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.