Home / 7,945.23-11,915.56-3,201.38

Finding the Fourth Proportional to 7,945.23, 11,915.56 and 3,201.38

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Solution

The fourth proportional to 7,945.23, 11,915.56 and 3,201.38 is: 4,801.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.23 : 11,915.56 = 3,201.38 : x
  2. Step 2: Convert to fraction form
    7,945.23/11,915.56 = 3,201.38/x
  3. Step 3: Cross multiply
    7,945.23x = 11,915.56 × 3,201.38
  4. Step 4: Simplify right side
    7,945.23x = 38,146,167.89
  5. Step 5: Solve for x
    x = 38,146,167.89/7,945.23
  6. Step 6: Final answer
    x = 4,801.14

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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.