Home / 12,800.12-19,184.84-8,359.89

Finding the Fourth Proportional to 12,800.12, 19,184.84 and 8,359.89

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Solution

The fourth proportional to 12,800.12, 19,184.84 and 8,359.89 is: 12,529.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800.12 : 19,184.84 = 8,359.89 : x
  2. Step 2: Convert to fraction form
    12,800.12/19,184.84 = 8,359.89/x
  3. Step 3: Cross multiply
    12,800.12x = 19,184.84 × 8,359.89
  4. Step 4: Simplify right side
    12,800.12x = 160,383,110.27
  5. Step 5: Solve for x
    x = 160,383,110.27/12,800.12
  6. Step 6: Final answer
    x = 12,529.82

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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.