Home / 8,945.49-12,336.27-6,520.65

Finding the Fourth Proportional to 8,945.49, 12,336.27 and 6,520.65

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Solution

The fourth proportional to 8,945.49, 12,336.27 and 6,520.65 is: 8,992.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945.49 : 12,336.27 = 6,520.65 : x
  2. Step 2: Convert to fraction form
    8,945.49/12,336.27 = 6,520.65/x
  3. Step 3: Cross multiply
    8,945.49x = 12,336.27 × 6,520.65
  4. Step 4: Simplify right side
    8,945.49x = 80,440,498.98
  5. Step 5: Solve for x
    x = 80,440,498.98/8,945.49
  6. Step 6: Final answer
    x = 8,992.30

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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.