Home / 11,782.40-17,673.60-5,211.68

Finding the Fourth Proportional to 11,782.40, 17,673.60 and 5,211.68

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Solution

The fourth proportional to 11,782.40, 17,673.60 and 5,211.68 is: 7,817.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,782.40 : 17,673.60 = 5,211.68 : x
  2. Step 2: Convert to fraction form
    11,782.40/17,673.60 = 5,211.68/x
  3. Step 3: Cross multiply
    11,782.40x = 17,673.60 × 5,211.68
  4. Step 4: Simplify right side
    11,782.40x = 92,109,147.65
  5. Step 5: Solve for x
    x = 92,109,147.65/11,782.40
  6. Step 6: Final answer
    x = 7,817.52

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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.