Home / 13,408.43-18,503.48-7,439.94

Finding the Fourth Proportional to 13,408.43, 18,503.48 and 7,439.94

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Solution

The fourth proportional to 13,408.43, 18,503.48 and 7,439.94 is: 10,267.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408.43 : 18,503.48 = 7,439.94 : x
  2. Step 2: Convert to fraction form
    13,408.43/18,503.48 = 7,439.94/x
  3. Step 3: Cross multiply
    13,408.43x = 18,503.48 × 7,439.94
  4. Step 4: Simplify right side
    13,408.43x = 137,664,743.79
  5. Step 5: Solve for x
    x = 137,664,743.79/13,408.43
  6. Step 6: Final answer
    x = 10,267.03

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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.