Home / 7,938.56-11,916.48-5,441.60

Finding the Fourth Proportional to 7,938.56, 11,916.48 and 5,441.60

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Solution

The fourth proportional to 7,938.56, 11,916.48 and 5,441.60 is: 8,168.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.56 : 11,916.48 = 5,441.60 : x
  2. Step 2: Convert to fraction form
    7,938.56/11,916.48 = 5,441.60/x
  3. Step 3: Cross multiply
    7,938.56x = 11,916.48 × 5,441.60
  4. Step 4: Simplify right side
    7,938.56x = 64,844,717.57
  5. Step 5: Solve for x
    x = 64,844,717.57/7,938.56
  6. Step 6: Final answer
    x = 8,168.32

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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.