Home / 17,790.78-26,660.25-12,148.86

Finding the Fourth Proportional to 17,790.78, 26,660.25 and 12,148.86

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Solution

The fourth proportional to 17,790.78, 26,660.25 and 12,148.86 is: 18,205.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,790.78 : 26,660.25 = 12,148.86 : x
  2. Step 2: Convert to fraction form
    17,790.78/26,660.25 = 12,148.86/x
  3. Step 3: Cross multiply
    17,790.78x = 26,660.25 × 12,148.86
  4. Step 4: Simplify right side
    17,790.78x = 323,891,644.82
  5. Step 5: Solve for x
    x = 323,891,644.82/17,790.78
  6. Step 6: Final answer
    x = 18,205.59

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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.