Home / 13,371.21-18,452.54-7,999.19

Finding the Fourth Proportional to 13,371.21, 18,452.54 and 7,999.19

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Solution

The fourth proportional to 13,371.21, 18,452.54 and 7,999.19 is: 11,039.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.21 : 18,452.54 = 7,999.19 : x
  2. Step 2: Convert to fraction form
    13,371.21/18,452.54 = 7,999.19/x
  3. Step 3: Cross multiply
    13,371.21x = 18,452.54 × 7,999.19
  4. Step 4: Simplify right side
    13,371.21x = 147,605,241.18
  5. Step 5: Solve for x
    x = 147,605,241.18/13,371.21
  6. Step 6: Final answer
    x = 11,039.04

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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.