Home / 11,202.45-15,449.18-8,964.42

Finding the Fourth Proportional to 11,202.45, 15,449.18 and 8,964.42

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Solution

The fourth proportional to 11,202.45, 15,449.18 and 8,964.42 is: 12,362.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,202.45 : 15,449.18 = 8,964.42 : x
  2. Step 2: Convert to fraction form
    11,202.45/15,449.18 = 8,964.42/x
  3. Step 3: Cross multiply
    11,202.45x = 15,449.18 × 8,964.42
  4. Step 4: Simplify right side
    11,202.45x = 138,492,893.35
  5. Step 5: Solve for x
    x = 138,492,893.35/11,202.45
  6. Step 6: Final answer
    x = 12,362.73

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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.