Home / 9,685.21-13,367.72-6,147.73

Finding the Fourth Proportional to 9,685.21, 13,367.72 and 6,147.73

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Solution

The fourth proportional to 9,685.21, 13,367.72 and 6,147.73 is: 8,485.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,685.21 : 13,367.72 = 6,147.73 : x
  2. Step 2: Convert to fraction form
    9,685.21/13,367.72 = 6,147.73/x
  3. Step 3: Cross multiply
    9,685.21x = 13,367.72 × 6,147.73
  4. Step 4: Simplify right side
    9,685.21x = 82,181,133.28
  5. Step 5: Solve for x
    x = 82,181,133.28/9,685.21
  6. Step 6: Final answer
    x = 8,485.22

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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.