Home / 12,151.20-16,769-6,845.72

Finding the Fourth Proportional to 12,151.20, 16,769 and 6,845.72

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Solution

The fourth proportional to 12,151.20, 16,769 and 6,845.72 is: 9,447.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151.20 : 16,769 = 6,845.72 : x
  2. Step 2: Convert to fraction form
    12,151.20/16,769 = 6,845.72/x
  3. Step 3: Cross multiply
    12,151.20x = 16,769 × 6,845.72
  4. Step 4: Simplify right side
    12,151.20x = 114,795,878.68
  5. Step 5: Solve for x
    x = 114,795,878.68/12,151.20
  6. Step 6: Final answer
    x = 9,447.29

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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.