Home / 13,185.84-19,786.54-4,871.74

Finding the Fourth Proportional to 13,185.84, 19,786.54 and 4,871.74

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Solution

The fourth proportional to 13,185.84, 19,786.54 and 4,871.74 is: 7,310.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.84 : 19,786.54 = 4,871.74 : x
  2. Step 2: Convert to fraction form
    13,185.84/19,786.54 = 4,871.74/x
  3. Step 3: Cross multiply
    13,185.84x = 19,786.54 × 4,871.74
  4. Step 4: Simplify right side
    13,185.84x = 96,394,878.38
  5. Step 5: Solve for x
    x = 96,394,878.38/13,185.84
  6. Step 6: Final answer
    x = 7,310.48

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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.