Home / 8,479.23-12,718.83-3,285.09

Finding the Fourth Proportional to 8,479.23, 12,718.83 and 3,285.09

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Solution

The fourth proportional to 8,479.23, 12,718.83 and 3,285.09 is: 4,927.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.23 : 12,718.83 = 3,285.09 : x
  2. Step 2: Convert to fraction form
    8,479.23/12,718.83 = 3,285.09/x
  3. Step 3: Cross multiply
    8,479.23x = 12,718.83 × 3,285.09
  4. Step 4: Simplify right side
    8,479.23x = 41,782,501.24
  5. Step 5: Solve for x
    x = 41,782,501.24/8,479.23
  6. Step 6: Final answer
    x = 4,927.63

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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.