Home / 10,989.61-16,487.13-3,198.44

Finding the Fourth Proportional to 10,989.61, 16,487.13 and 3,198.44

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Solution

The fourth proportional to 10,989.61, 16,487.13 and 3,198.44 is: 4,798.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.61 : 16,487.13 = 3,198.44 : x
  2. Step 2: Convert to fraction form
    10,989.61/16,487.13 = 3,198.44/x
  3. Step 3: Cross multiply
    10,989.61x = 16,487.13 × 3,198.44
  4. Step 4: Simplify right side
    10,989.61x = 52,733,096.08
  5. Step 5: Solve for x
    x = 52,733,096.08/10,989.61
  6. Step 6: Final answer
    x = 4,798.45

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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.