Home / 12,849.84-19,274.40-3,490.61

Finding the Fourth Proportional to 12,849.84, 19,274.40 and 3,490.61

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Solution

The fourth proportional to 12,849.84, 19,274.40 and 3,490.61 is: 5,235.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,849.84 : 19,274.40 = 3,490.61 : x
  2. Step 2: Convert to fraction form
    12,849.84/19,274.40 = 3,490.61/x
  3. Step 3: Cross multiply
    12,849.84x = 19,274.40 × 3,490.61
  4. Step 4: Simplify right side
    12,849.84x = 67,279,317.01
  5. Step 5: Solve for x
    x = 67,279,317.01/12,849.84
  6. Step 6: Final answer
    x = 5,235.81

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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.