Home / 18,516.33-25,551.90-10,561.12

Finding the Fourth Proportional to 18,516.33, 25,551.90 and 10,561.12

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Solution

The fourth proportional to 18,516.33, 25,551.90 and 10,561.12 is: 14,573.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,516.33 : 25,551.90 = 10,561.12 : x
  2. Step 2: Convert to fraction form
    18,516.33/25,551.90 = 10,561.12/x
  3. Step 3: Cross multiply
    18,516.33x = 25,551.90 × 10,561.12
  4. Step 4: Simplify right side
    18,516.33x = 269,856,682.13
  5. Step 5: Solve for x
    x = 269,856,682.13/18,516.33
  6. Step 6: Final answer
    x = 14,573.98

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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.