Home / 8,271.12-12,403.30-4,109.60

Finding the Fourth Proportional to 8,271.12, 12,403.30 and 4,109.60

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Solution

The fourth proportional to 8,271.12, 12,403.30 and 4,109.60 is: 6,162.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,271.12 : 12,403.30 = 4,109.60 : x
  2. Step 2: Convert to fraction form
    8,271.12/12,403.30 = 4,109.60/x
  3. Step 3: Cross multiply
    8,271.12x = 12,403.30 × 4,109.60
  4. Step 4: Simplify right side
    8,271.12x = 50,972,601.68
  5. Step 5: Solve for x
    x = 50,972,601.68/8,271.12
  6. Step 6: Final answer
    x = 6,162.72

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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.