Home / 8,408.50-11,604.55-6,280.33

Finding the Fourth Proportional to 8,408.50, 11,604.55 and 6,280.33

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Solution

The fourth proportional to 8,408.50, 11,604.55 and 6,280.33 is: 8,667.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.50 : 11,604.55 = 6,280.33 : x
  2. Step 2: Convert to fraction form
    8,408.50/11,604.55 = 6,280.33/x
  3. Step 3: Cross multiply
    8,408.50x = 11,604.55 × 6,280.33
  4. Step 4: Simplify right side
    8,408.50x = 72,880,403.50
  5. Step 5: Solve for x
    x = 72,880,403.50/8,408.50
  6. Step 6: Final answer
    x = 8,667.47

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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.