Home / 18,516.52-25,553.32-10,133.56

Finding the Fourth Proportional to 18,516.52, 25,553.32 and 10,133.56

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Solution

The fourth proportional to 18,516.52, 25,553.32 and 10,133.56 is: 13,984.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,516.52 : 25,553.32 = 10,133.56 : x
  2. Step 2: Convert to fraction form
    18,516.52/25,553.32 = 10,133.56/x
  3. Step 3: Cross multiply
    18,516.52x = 25,553.32 × 10,133.56
  4. Step 4: Simplify right side
    18,516.52x = 258,946,101.42
  5. Step 5: Solve for x
    x = 258,946,101.42/18,516.52
  6. Step 6: Final answer
    x = 13,984.60

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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.