Home / 19,240.94-28,864.35-8,147.69

Finding the Fourth Proportional to 19,240.94, 28,864.35 and 8,147.69

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Solution

The fourth proportional to 19,240.94, 28,864.35 and 8,147.69 is: 12,222.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,240.94 : 28,864.35 = 8,147.69 : x
  2. Step 2: Convert to fraction form
    19,240.94/28,864.35 = 8,147.69/x
  3. Step 3: Cross multiply
    19,240.94x = 28,864.35 × 8,147.69
  4. Step 4: Simplify right side
    19,240.94x = 235,177,739.77
  5. Step 5: Solve for x
    x = 235,177,739.77/19,240.94
  6. Step 6: Final answer
    x = 12,222.78

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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.