Home / 18,516.10-25,548.15-10,958.66

Finding the Fourth Proportional to 18,516.10, 25,548.15 and 10,958.66

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Solution

The fourth proportional to 18,516.10, 25,548.15 and 10,958.66 is: 15,120.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,516.10 : 25,548.15 = 10,958.66 : x
  2. Step 2: Convert to fraction form
    18,516.10/25,548.15 = 10,958.66/x
  3. Step 3: Cross multiply
    18,516.10x = 25,548.15 × 10,958.66
  4. Step 4: Simplify right side
    18,516.10x = 279,973,489.48
  5. Step 5: Solve for x
    x = 279,973,489.48/18,516.10
  6. Step 6: Final answer
    x = 15,120.54

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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.