Home / 13,179.47-19,761.91-4,409.60

Finding the Fourth Proportional to 13,179.47, 19,761.91 and 4,409.60

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Solution

The fourth proportional to 13,179.47, 19,761.91 and 4,409.60 is: 6,611.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179.47 : 19,761.91 = 4,409.60 : x
  2. Step 2: Convert to fraction form
    13,179.47/19,761.91 = 4,409.60/x
  3. Step 3: Cross multiply
    13,179.47x = 19,761.91 × 4,409.60
  4. Step 4: Simplify right side
    13,179.47x = 87,142,008.50
  5. Step 5: Solve for x
    x = 87,142,008.50/13,179.47
  6. Step 6: Final answer
    x = 6,611.95

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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.