Home / 11,321.34-16,984.16-5,081.21

Finding the Fourth Proportional to 11,321.34, 16,984.16 and 5,081.21

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Solution

The fourth proportional to 11,321.34, 16,984.16 and 5,081.21 is: 7,622.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.34 : 16,984.16 = 5,081.21 : x
  2. Step 2: Convert to fraction form
    11,321.34/16,984.16 = 5,081.21/x
  3. Step 3: Cross multiply
    11,321.34x = 16,984.16 × 5,081.21
  4. Step 4: Simplify right side
    11,321.34x = 86,299,993.99
  5. Step 5: Solve for x
    x = 86,299,993.99/11,321.34
  6. Step 6: Final answer
    x = 7,622.77

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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.