Home / 10,989.42-16,485.78-3,197.22

Finding the Fourth Proportional to 10,989.42, 16,485.78 and 3,197.22

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Solution

The fourth proportional to 10,989.42, 16,485.78 and 3,197.22 is: 4,796.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.42 : 16,485.78 = 3,197.22 : x
  2. Step 2: Convert to fraction form
    10,989.42/16,485.78 = 3,197.22/x
  3. Step 3: Cross multiply
    10,989.42x = 16,485.78 × 3,197.22
  4. Step 4: Simplify right side
    10,989.42x = 52,708,665.53
  5. Step 5: Solve for x
    x = 52,708,665.53/10,989.42
  6. Step 6: Final answer
    x = 4,796.31

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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.