Home / 8,729.84-13,101.60-3,539.36

Finding the Fourth Proportional to 8,729.84, 13,101.60 and 3,539.36

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Solution

The fourth proportional to 8,729.84, 13,101.60 and 3,539.36 is: 5,311.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.84 : 13,101.60 = 3,539.36 : x
  2. Step 2: Convert to fraction form
    8,729.84/13,101.60 = 3,539.36/x
  3. Step 3: Cross multiply
    8,729.84x = 13,101.60 × 3,539.36
  4. Step 4: Simplify right side
    8,729.84x = 46,371,278.98
  5. Step 5: Solve for x
    x = 46,371,278.98/8,729.84
  6. Step 6: Final answer
    x = 5,311.81

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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.