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Finding the Fourth Proportional to 12,846.99, 19,270.08 and 5,821.86

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Solution

The fourth proportional to 12,846.99, 19,270.08 and 5,821.86 is: 8,732.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,846.99 : 19,270.08 = 5,821.86 : x
  2. Step 2: Convert to fraction form
    12,846.99/19,270.08 = 5,821.86/x
  3. Step 3: Cross multiply
    12,846.99x = 19,270.08 × 5,821.86
  4. Step 4: Simplify right side
    12,846.99x = 112,187,707.95
  5. Step 5: Solve for x
    x = 112,187,707.95/12,846.99
  6. Step 6: Final answer
    x = 8,732.61

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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.