Home / 11,387.09-17,086.77-5,457.60

Finding the Fourth Proportional to 11,387.09, 17,086.77 and 5,457.60

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Solution

The fourth proportional to 11,387.09, 17,086.77 and 5,457.60 is: 8,189.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,387.09 : 17,086.77 = 5,457.60 : x
  2. Step 2: Convert to fraction form
    11,387.09/17,086.77 = 5,457.60/x
  3. Step 3: Cross multiply
    11,387.09x = 17,086.77 × 5,457.60
  4. Step 4: Simplify right side
    11,387.09x = 93,252,755.95
  5. Step 5: Solve for x
    x = 93,252,755.95/11,387.09
  6. Step 6: Final answer
    x = 8,189.34

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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.