Home / 11,321.16-15,620.04-7,076.54

Finding the Fourth Proportional to 11,321.16, 15,620.04 and 7,076.54

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Solution

The fourth proportional to 11,321.16, 15,620.04 and 7,076.54 is: 9,763.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.16 : 15,620.04 = 7,076.54 : x
  2. Step 2: Convert to fraction form
    11,321.16/15,620.04 = 7,076.54/x
  3. Step 3: Cross multiply
    11,321.16x = 15,620.04 × 7,076.54
  4. Step 4: Simplify right side
    11,321.16x = 110,535,847.62
  5. Step 5: Solve for x
    x = 110,535,847.62/11,321.16
  6. Step 6: Final answer
    x = 9,763.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.