Home / 13,633.74-20,450.61-12,583.98

Finding the Fourth Proportional to 13,633.74, 20,450.61 and 12,583.98

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Solution

The fourth proportional to 13,633.74, 20,450.61 and 12,583.98 is: 18,875.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,633.74 : 20,450.61 = 12,583.98 : x
  2. Step 2: Convert to fraction form
    13,633.74/20,450.61 = 12,583.98/x
  3. Step 3: Cross multiply
    13,633.74x = 20,450.61 × 12,583.98
  4. Step 4: Simplify right side
    13,633.74x = 257,350,067.23
  5. Step 5: Solve for x
    x = 257,350,067.23/13,633.74
  6. Step 6: Final answer
    x = 18,875.97

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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.