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Finding the Fourth Proportional to 13,340.00, 18,408.94 and 7,371.54

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Solution

The fourth proportional to 13,340.00, 18,408.94 and 7,371.54 is: 10,172.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.00 : 18,408.94 = 7,371.54 : x
  2. Step 2: Convert to fraction form
    13,340.00/18,408.94 = 7,371.54/x
  3. Step 3: Cross multiply
    13,340.00x = 18,408.94 × 7,371.54
  4. Step 4: Simplify right side
    13,340.00x = 135,702,237.57
  5. Step 5: Solve for x
    x = 135,702,237.57/13,340.00
  6. Step 6: Final answer
    x = 10,172.58

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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.