Home / 8,327.40-12,486.78-3,132.60

Finding the Fourth Proportional to 8,327.40, 12,486.78 and 3,132.60

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Solution

The fourth proportional to 8,327.40, 12,486.78 and 3,132.60 is: 4,697.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,327.40 : 12,486.78 = 3,132.60 : x
  2. Step 2: Convert to fraction form
    8,327.40/12,486.78 = 3,132.60/x
  3. Step 3: Cross multiply
    8,327.40x = 12,486.78 × 3,132.60
  4. Step 4: Simplify right side
    8,327.40x = 39,116,087.03
  5. Step 5: Solve for x
    x = 39,116,087.03/8,327.40
  6. Step 6: Final answer
    x = 4,697.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.