Home / 12,183.63-16,813.95-6,878.49

Finding the Fourth Proportional to 12,183.63, 16,813.95 and 6,878.49

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Solution

The fourth proportional to 12,183.63, 16,813.95 and 6,878.49 is: 9,492.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.63 : 16,813.95 = 6,878.49 : x
  2. Step 2: Convert to fraction form
    12,183.63/16,813.95 = 6,878.49/x
  3. Step 3: Cross multiply
    12,183.63x = 16,813.95 × 6,878.49
  4. Step 4: Simplify right side
    12,183.63x = 115,654,586.94
  5. Step 5: Solve for x
    x = 115,654,586.94/12,183.63
  6. Step 6: Final answer
    x = 9,492.62

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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.