Home / 12,811.35-17,673.39-8,563.44

Finding the Fourth Proportional to 12,811.35, 17,673.39 and 8,563.44

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Solution

The fourth proportional to 12,811.35, 17,673.39 and 8,563.44 is: 11,813.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811.35 : 17,673.39 = 8,563.44 : x
  2. Step 2: Convert to fraction form
    12,811.35/17,673.39 = 8,563.44/x
  3. Step 3: Cross multiply
    12,811.35x = 17,673.39 × 8,563.44
  4. Step 4: Simplify right side
    12,811.35x = 151,345,014.86
  5. Step 5: Solve for x
    x = 151,345,014.86/12,811.35
  6. Step 6: Final answer
    x = 11,813.35

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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.