Home / 12,245.80-16,899.46-6,940.52

Finding the Fourth Proportional to 12,245.80, 16,899.46 and 6,940.52

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Solution

The fourth proportional to 12,245.80, 16,899.46 and 6,940.52 is: 9,578.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245.80 : 16,899.46 = 6,940.52 : x
  2. Step 2: Convert to fraction form
    12,245.80/16,899.46 = 6,940.52/x
  3. Step 3: Cross multiply
    12,245.80x = 16,899.46 × 6,940.52
  4. Step 4: Simplify right side
    12,245.80x = 117,291,040.12
  5. Step 5: Solve for x
    x = 117,291,040.12/12,245.80
  6. Step 6: Final answer
    x = 9,578.06

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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.