Home / 13,384.38-20,079.76-4,619.37

Finding the Fourth Proportional to 13,384.38, 20,079.76 and 4,619.37

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Solution

The fourth proportional to 13,384.38, 20,079.76 and 4,619.37 is: 6,930.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,384.38 : 20,079.76 = 4,619.37 : x
  2. Step 2: Convert to fraction form
    13,384.38/20,079.76 = 4,619.37/x
  3. Step 3: Cross multiply
    13,384.38x = 20,079.76 × 4,619.37
  4. Step 4: Simplify right side
    13,384.38x = 92,755,840.95
  5. Step 5: Solve for x
    x = 92,755,840.95/13,384.38
  6. Step 6: Final answer
    x = 6,930.16

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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.