Home / 8,190.48-12,290.56-3,262.40

Finding the Fourth Proportional to 8,190.48, 12,290.56 and 3,262.40

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Solution

The fourth proportional to 8,190.48, 12,290.56 and 3,262.40 is: 4,895.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.48 : 12,290.56 = 3,262.40 : x
  2. Step 2: Convert to fraction form
    8,190.48/12,290.56 = 3,262.40/x
  3. Step 3: Cross multiply
    8,190.48x = 12,290.56 × 3,262.40
  4. Step 4: Simplify right side
    8,190.48x = 40,096,722.94
  5. Step 5: Solve for x
    x = 40,096,722.94/8,190.48
  6. Step 6: Final answer
    x = 4,895.53

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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.