Home / 8,940.34-13,415.06-3,679.40

Finding the Fourth Proportional to 8,940.34, 13,415.06 and 3,679.40

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Solution

The fourth proportional to 8,940.34, 13,415.06 and 3,679.40 is: 5,520.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.34 : 13,415.06 = 3,679.40 : x
  2. Step 2: Convert to fraction form
    8,940.34/13,415.06 = 3,679.40/x
  3. Step 3: Cross multiply
    8,940.34x = 13,415.06 × 3,679.40
  4. Step 4: Simplify right side
    8,940.34x = 49,359,371.76
  5. Step 5: Solve for x
    x = 49,359,371.76/8,940.34
  6. Step 6: Final answer
    x = 5,520.97

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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.