Home / 7,745.48-11,611.70-6,281

Finding the Fourth Proportional to 7,745.48, 11,611.70 and 6,281

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Solution

The fourth proportional to 7,745.48, 11,611.70 and 6,281 is: 9,416.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.48 : 11,611.70 = 6,281 : x
  2. Step 2: Convert to fraction form
    7,745.48/11,611.70 = 6,281/x
  3. Step 3: Cross multiply
    7,745.48x = 11,611.70 × 6,281
  4. Step 4: Simplify right side
    7,745.48x = 72,933,087.70
  5. Step 5: Solve for x
    x = 72,933,087.70/7,745.48
  6. Step 6: Final answer
    x = 9,416.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.