Home / 12,149.82-18,193.20-10,406.03

Finding the Fourth Proportional to 12,149.82, 18,193.20 and 10,406.03

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Solution

The fourth proportional to 12,149.82, 18,193.20 and 10,406.03 is: 15,582.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.82 : 18,193.20 = 10,406.03 : x
  2. Step 2: Convert to fraction form
    12,149.82/18,193.20 = 10,406.03/x
  3. Step 3: Cross multiply
    12,149.82x = 18,193.20 × 10,406.03
  4. Step 4: Simplify right side
    12,149.82x = 189,319,015.88
  5. Step 5: Solve for x
    x = 189,319,015.88/12,149.82
  6. Step 6: Final answer
    x = 15,582.04

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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.