Home / 11,321.17-16,986.46-4,992.81

Finding the Fourth Proportional to 11,321.17, 16,986.46 and 4,992.81

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Solution

The fourth proportional to 11,321.17, 16,986.46 and 4,992.81 is: 7,491.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.17 : 16,986.46 = 4,992.81 : x
  2. Step 2: Convert to fraction form
    11,321.17/16,986.46 = 4,992.81/x
  3. Step 3: Cross multiply
    11,321.17x = 16,986.46 × 4,992.81
  4. Step 4: Simplify right side
    11,321.17x = 84,810,243.86
  5. Step 5: Solve for x
    x = 84,810,243.86/11,321.17
  6. Step 6: Final answer
    x = 7,491.30

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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.