Home / 8,074.08-12,087.24-7,229.40

Finding the Fourth Proportional to 8,074.08, 12,087.24 and 7,229.40

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Solution

The fourth proportional to 8,074.08, 12,087.24 and 7,229.40 is: 10,822.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,074.08 : 12,087.24 = 7,229.40 : x
  2. Step 2: Convert to fraction form
    8,074.08/12,087.24 = 7,229.40/x
  3. Step 3: Cross multiply
    8,074.08x = 12,087.24 × 7,229.40
  4. Step 4: Simplify right side
    8,074.08x = 87,383,492.86
  5. Step 5: Solve for x
    x = 87,383,492.86/8,074.08
  6. Step 6: Final answer
    x = 10,822.72

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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.