Home / 17,505.68-26,221.60-11,886.80

Finding the Fourth Proportional to 17,505.68, 26,221.60 and 11,886.80

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Solution

The fourth proportional to 17,505.68, 26,221.60 and 11,886.80 is: 17,805.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,505.68 : 26,221.60 = 11,886.80 : x
  2. Step 2: Convert to fraction form
    17,505.68/26,221.60 = 11,886.80/x
  3. Step 3: Cross multiply
    17,505.68x = 26,221.60 × 11,886.80
  4. Step 4: Simplify right side
    17,505.68x = 311,690,912.70
  5. Step 5: Solve for x
    x = 311,690,912.70/17,505.68
  6. Step 6: Final answer
    x = 17,805.13

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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.