Home / 8,945.56-12,336.36-6,520.72

Finding the Fourth Proportional to 8,945.56, 12,336.36 and 6,520.72

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Solution

The fourth proportional to 8,945.56, 12,336.36 and 6,520.72 is: 8,992.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945.56 : 12,336.36 = 6,520.72 : x
  2. Step 2: Convert to fraction form
    8,945.56/12,336.36 = 6,520.72/x
  3. Step 3: Cross multiply
    8,945.56x = 12,336.36 × 6,520.72
  4. Step 4: Simplify right side
    8,945.56x = 80,441,949.38
  5. Step 5: Solve for x
    x = 80,441,949.38/8,945.56
  6. Step 6: Final answer
    x = 8,992.39

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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.