Home / 13,118.41-19,674.14-5,220.61

Finding the Fourth Proportional to 13,118.41, 19,674.14 and 5,220.61

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Solution

The fourth proportional to 13,118.41, 19,674.14 and 5,220.61 is: 7,829.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118.41 : 19,674.14 = 5,220.61 : x
  2. Step 2: Convert to fraction form
    13,118.41/19,674.14 = 5,220.61/x
  3. Step 3: Cross multiply
    13,118.41x = 19,674.14 × 5,220.61
  4. Step 4: Simplify right side
    13,118.41x = 102,710,996.45
  5. Step 5: Solve for x
    x = 102,710,996.45/13,118.41
  6. Step 6: Final answer
    x = 7,829.53

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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.