Home / 7,806.24-11,705.04-3,188.16

Finding the Fourth Proportional to 7,806.24, 11,705.04 and 3,188.16

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Solution

The fourth proportional to 7,806.24, 11,705.04 and 3,188.16 is: 4,780.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,806.24 : 11,705.04 = 3,188.16 : x
  2. Step 2: Convert to fraction form
    7,806.24/11,705.04 = 3,188.16/x
  3. Step 3: Cross multiply
    7,806.24x = 11,705.04 × 3,188.16
  4. Step 4: Simplify right side
    7,806.24x = 37,317,540.33
  5. Step 5: Solve for x
    x = 37,317,540.33/7,806.24
  6. Step 6: Final answer
    x = 4,780.48

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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.