Home / 12,245.60-16,899.29-6,940.23

Finding the Fourth Proportional to 12,245.60, 16,899.29 and 6,940.23

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Solution

The fourth proportional to 12,245.60, 16,899.29 and 6,940.23 is: 9,577.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245.60 : 16,899.29 = 6,940.23 : x
  2. Step 2: Convert to fraction form
    12,245.60/16,899.29 = 6,940.23/x
  3. Step 3: Cross multiply
    12,245.60x = 16,899.29 × 6,940.23
  4. Step 4: Simplify right side
    12,245.60x = 117,284,924.74
  5. Step 5: Solve for x
    x = 117,284,924.74/12,245.60
  6. Step 6: Final answer
    x = 9,577.72

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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.