Home / 8,408.33-11,607.68-6,515.63

Finding the Fourth Proportional to 8,408.33, 11,607.68 and 6,515.63

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Solution

The fourth proportional to 8,408.33, 11,607.68 and 6,515.63 is: 8,994.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.33 : 11,607.68 = 6,515.63 : x
  2. Step 2: Convert to fraction form
    8,408.33/11,607.68 = 6,515.63/x
  3. Step 3: Cross multiply
    8,408.33x = 11,607.68 × 6,515.63
  4. Step 4: Simplify right side
    8,408.33x = 75,631,257.42
  5. Step 5: Solve for x
    x = 75,631,257.42/8,408.33
  6. Step 6: Final answer
    x = 8,994.81

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Half scale
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Double scale
Find fourth proportional to 8,409.33, 11,609.06 and 6,516.63
Similar ratio
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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.