Home / 13,798.70-20,693.91-4,912.43

Finding the Fourth Proportional to 13,798.70, 20,693.91 and 4,912.43

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Solution

The fourth proportional to 13,798.70, 20,693.91 and 4,912.43 is: 7,367.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,798.70 : 20,693.91 = 4,912.43 : x
  2. Step 2: Convert to fraction form
    13,798.70/20,693.91 = 4,912.43/x
  3. Step 3: Cross multiply
    13,798.70x = 20,693.91 × 4,912.43
  4. Step 4: Simplify right side
    13,798.70x = 101,657,384.30
  5. Step 5: Solve for x
    x = 101,657,384.30/13,798.70
  6. Step 6: Final answer
    x = 7,367.17

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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.