Home / 13,206.60-19,785.60-11,116.80

Finding the Fourth Proportional to 13,206.60, 19,785.60 and 11,116.80

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Solution

The fourth proportional to 13,206.60, 19,785.60 and 11,116.80 is: 16,654.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.60 : 19,785.60 = 11,116.80 : x
  2. Step 2: Convert to fraction form
    13,206.60/19,785.60 = 11,116.80/x
  3. Step 3: Cross multiply
    13,206.60x = 19,785.60 × 11,116.80
  4. Step 4: Simplify right side
    13,206.60x = 219,952,558.08
  5. Step 5: Solve for x
    x = 219,952,558.08/13,206.60
  6. Step 6: Final answer
    x = 16,654.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.