Home / 11,640.48-17,457.12-3,321.12

Finding the Fourth Proportional to 11,640.48, 17,457.12 and 3,321.12

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Solution

The fourth proportional to 11,640.48, 17,457.12 and 3,321.12 is: 4,980.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,640.48 : 17,457.12 = 3,321.12 : x
  2. Step 2: Convert to fraction form
    11,640.48/17,457.12 = 3,321.12/x
  3. Step 3: Cross multiply
    11,640.48x = 17,457.12 × 3,321.12
  4. Step 4: Simplify right side
    11,640.48x = 57,977,190.37
  5. Step 5: Solve for x
    x = 57,977,190.37/11,640.48
  6. Step 6: Final answer
    x = 4,980.65

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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.