Home / 8,636.08-12,955.38-2,792.92

Finding the Fourth Proportional to 8,636.08, 12,955.38 and 2,792.92

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Solution

The fourth proportional to 8,636.08, 12,955.38 and 2,792.92 is: 4,189.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,636.08 : 12,955.38 = 2,792.92 : x
  2. Step 2: Convert to fraction form
    8,636.08/12,955.38 = 2,792.92/x
  3. Step 3: Cross multiply
    8,636.08x = 12,955.38 × 2,792.92
  4. Step 4: Simplify right side
    8,636.08x = 36,183,339.91
  5. Step 5: Solve for x
    x = 36,183,339.91/8,636.08
  6. Step 6: Final answer
    x = 4,189.79

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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.