Home / 14,485.96-19,990.82-8,517.64

Finding the Fourth Proportional to 14,485.96, 19,990.82 and 8,517.64

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Solution

The fourth proportional to 14,485.96, 19,990.82 and 8,517.64 is: 11,754.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,485.96 : 19,990.82 = 8,517.64 : x
  2. Step 2: Convert to fraction form
    14,485.96/19,990.82 = 8,517.64/x
  3. Step 3: Cross multiply
    14,485.96x = 19,990.82 × 8,517.64
  4. Step 4: Simplify right side
    14,485.96x = 170,274,608.06
  5. Step 5: Solve for x
    x = 170,274,608.06/14,485.96
  6. Step 6: Final answer
    x = 11,754.46

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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.