Home / 8,245.47-11,378.85-4,708.47

Finding the Fourth Proportional to 8,245.47, 11,378.85 and 4,708.47

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Solution

The fourth proportional to 8,245.47, 11,378.85 and 4,708.47 is: 6,497.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,245.47 : 11,378.85 = 4,708.47 : x
  2. Step 2: Convert to fraction form
    8,245.47/11,378.85 = 4,708.47/x
  3. Step 3: Cross multiply
    8,245.47x = 11,378.85 × 4,708.47
  4. Step 4: Simplify right side
    8,245.47x = 53,576,973.86
  5. Step 5: Solve for x
    x = 53,576,973.86/8,245.47
  6. Step 6: Final answer
    x = 6,497.75

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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.