Home / 12,435.80-17,137.78-8,892.86

Finding the Fourth Proportional to 12,435.80, 17,137.78 and 8,892.86

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Solution

The fourth proportional to 12,435.80, 17,137.78 and 8,892.86 is: 12,255.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,435.80 : 17,137.78 = 8,892.86 : x
  2. Step 2: Convert to fraction form
    12,435.80/17,137.78 = 8,892.86/x
  3. Step 3: Cross multiply
    12,435.80x = 17,137.78 × 8,892.86
  4. Step 4: Simplify right side
    12,435.80x = 152,403,770.33
  5. Step 5: Solve for x
    x = 152,403,770.33/12,435.80
  6. Step 6: Final answer
    x = 12,255.25

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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.