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Finding the Fourth Proportional to 7,795.03, 11,745.17 and 6,438.75

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Solution

The fourth proportional to 7,795.03, 11,745.17 and 6,438.75 is: 9,701.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,795.03 : 11,745.17 = 6,438.75 : x
  2. Step 2: Convert to fraction form
    7,795.03/11,745.17 = 6,438.75/x
  3. Step 3: Cross multiply
    7,795.03x = 11,745.17 × 6,438.75
  4. Step 4: Simplify right side
    7,795.03x = 75,624,213.34
  5. Step 5: Solve for x
    x = 75,624,213.34/7,795.03
  6. Step 6: Final answer
    x = 9,701.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.