Home / 8,431.05-12,635.64-5,653.56

Finding the Fourth Proportional to 8,431.05, 12,635.64 and 5,653.56

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Solution

The fourth proportional to 8,431.05, 12,635.64 and 5,653.56 is: 8,473.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.05 : 12,635.64 = 5,653.56 : x
  2. Step 2: Convert to fraction form
    8,431.05/12,635.64 = 5,653.56/x
  3. Step 3: Cross multiply
    8,431.05x = 12,635.64 × 5,653.56
  4. Step 4: Simplify right side
    8,431.05x = 71,436,348.88
  5. Step 5: Solve for x
    x = 71,436,348.88/8,431.05
  6. Step 6: Final answer
    x = 8,473.01

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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.