Home / 13,633.80-20,450.70-7,516.68

Finding the Fourth Proportional to 13,633.80, 20,450.70 and 7,516.68

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Solution

The fourth proportional to 13,633.80, 20,450.70 and 7,516.68 is: 11,275.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,633.80 : 20,450.70 = 7,516.68 : x
  2. Step 2: Convert to fraction form
    13,633.80/20,450.70 = 7,516.68/x
  3. Step 3: Cross multiply
    13,633.80x = 20,450.70 × 7,516.68
  4. Step 4: Simplify right side
    13,633.80x = 153,721,367.68
  5. Step 5: Solve for x
    x = 153,721,367.68/13,633.80
  6. Step 6: Final answer
    x = 11,275.02

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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.