Home / 11,742.50-17,613.75-3,951.31

Finding the Fourth Proportional to 11,742.50, 17,613.75 and 3,951.31

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Solution

The fourth proportional to 11,742.50, 17,613.75 and 3,951.31 is: 5,926.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,742.50 : 17,613.75 = 3,951.31 : x
  2. Step 2: Convert to fraction form
    11,742.50/17,613.75 = 3,951.31/x
  3. Step 3: Cross multiply
    11,742.50x = 17,613.75 × 3,951.31
  4. Step 4: Simplify right side
    11,742.50x = 69,597,386.51
  5. Step 5: Solve for x
    x = 69,597,386.51/11,742.50
  6. Step 6: Final answer
    x = 5,926.97

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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.