Home / 12,635.12-18,954.72-5,617.55

Finding the Fourth Proportional to 12,635.12, 18,954.72 and 5,617.55

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Solution

The fourth proportional to 12,635.12, 18,954.72 and 5,617.55 is: 8,427.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,635.12 : 18,954.72 = 5,617.55 : x
  2. Step 2: Convert to fraction form
    12,635.12/18,954.72 = 5,617.55/x
  3. Step 3: Cross multiply
    12,635.12x = 18,954.72 × 5,617.55
  4. Step 4: Simplify right side
    12,635.12x = 106,478,992.56
  5. Step 5: Solve for x
    x = 106,478,992.56/12,635.12
  6. Step 6: Final answer
    x = 8,427.23

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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.