Home / 13,086.12-19,629.82-4,320.84

Finding the Fourth Proportional to 13,086.12, 19,629.82 and 4,320.84

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Solution

The fourth proportional to 13,086.12, 19,629.82 and 4,320.84 is: 6,481.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,086.12 : 19,629.82 = 4,320.84 : x
  2. Step 2: Convert to fraction form
    13,086.12/19,629.82 = 4,320.84/x
  3. Step 3: Cross multiply
    13,086.12x = 19,629.82 × 4,320.84
  4. Step 4: Simplify right side
    13,086.12x = 84,817,311.45
  5. Step 5: Solve for x
    x = 84,817,311.45/13,086.12
  6. Step 6: Final answer
    x = 6,481.47

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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.