Home / 10,990.73-16,438.99-10,193.03

Finding the Fourth Proportional to 10,990.73, 16,438.99 and 10,193.03

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Solution

The fourth proportional to 10,990.73, 16,438.99 and 10,193.03 is: 15,245.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.73 : 16,438.99 = 10,193.03 : x
  2. Step 2: Convert to fraction form
    10,990.73/16,438.99 = 10,193.03/x
  3. Step 3: Cross multiply
    10,990.73x = 16,438.99 × 10,193.03
  4. Step 4: Simplify right side
    10,990.73x = 167,563,118.24
  5. Step 5: Solve for x
    x = 167,563,118.24/10,990.73
  6. Step 6: Final answer
    x = 15,245.87

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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.