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Finding the Fourth Proportional to 7,945.03, 11,915.07 and 5,495.59

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Solution

The fourth proportional to 7,945.03, 11,915.07 and 5,495.59 is: 8,241.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.03 : 11,915.07 = 5,495.59 : x
  2. Step 2: Convert to fraction form
    7,945.03/11,915.07 = 5,495.59/x
  3. Step 3: Cross multiply
    7,945.03x = 11,915.07 × 5,495.59
  4. Step 4: Simplify right side
    7,945.03x = 65,480,339.54
  5. Step 5: Solve for x
    x = 65,480,339.54/7,945.03
  6. Step 6: Final answer
    x = 8,241.67

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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.