Home / 13,204.25-18,215.75-11,693.35

Finding the Fourth Proportional to 13,204.25, 18,215.75 and 11,693.35

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Solution

The fourth proportional to 13,204.25, 18,215.75 and 11,693.35 is: 16,131.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,204.25 : 18,215.75 = 11,693.35 : x
  2. Step 2: Convert to fraction form
    13,204.25/18,215.75 = 11,693.35/x
  3. Step 3: Cross multiply
    13,204.25x = 18,215.75 × 11,693.35
  4. Step 4: Simplify right side
    13,204.25x = 213,003,140.26
  5. Step 5: Solve for x
    x = 213,003,140.26/13,204.25
  6. Step 6: Final answer
    x = 16,131.41

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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.