Home / 8,245.26-11,378.21-4,707.78

Finding the Fourth Proportional to 8,245.26, 11,378.21 and 4,707.78

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Solution

The fourth proportional to 8,245.26, 11,378.21 and 4,707.78 is: 6,496.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,245.26 : 11,378.21 = 4,707.78 : x
  2. Step 2: Convert to fraction form
    8,245.26/11,378.21 = 4,707.78/x
  3. Step 3: Cross multiply
    8,245.26x = 11,378.21 × 4,707.78
  4. Step 4: Simplify right side
    8,245.26x = 53,566,085.93
  5. Step 5: Solve for x
    x = 53,566,085.93/8,245.26
  6. Step 6: Final answer
    x = 6,496.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.