Home / 13,408.44-18,503.33-7,440.02

Finding the Fourth Proportional to 13,408.44, 18,503.33 and 7,440.02

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Solution

The fourth proportional to 13,408.44, 18,503.33 and 7,440.02 is: 10,267.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408.44 : 18,503.33 = 7,440.02 : x
  2. Step 2: Convert to fraction form
    13,408.44/18,503.33 = 7,440.02/x
  3. Step 3: Cross multiply
    13,408.44x = 18,503.33 × 7,440.02
  4. Step 4: Simplify right side
    13,408.44x = 137,665,145.27
  5. Step 5: Solve for x
    x = 137,665,145.27/13,408.44
  6. Step 6: Final answer
    x = 10,267.05

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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.