Home / 7,957.20-11,939.76-6,021.28

Finding the Fourth Proportional to 7,957.20, 11,939.76 and 6,021.28

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Solution

The fourth proportional to 7,957.20, 11,939.76 and 6,021.28 is: 9,034.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,957.20 : 11,939.76 = 6,021.28 : x
  2. Step 2: Convert to fraction form
    7,957.20/11,939.76 = 6,021.28/x
  3. Step 3: Cross multiply
    7,957.20x = 11,939.76 × 6,021.28
  4. Step 4: Simplify right side
    7,957.20x = 71,892,638.09
  5. Step 5: Solve for x
    x = 71,892,638.09/7,957.20
  6. Step 6: Final answer
    x = 9,034.92

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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.