Home / 13,274.24-19,893.12-12,769.28

Finding the Fourth Proportional to 13,274.24, 19,893.12 and 12,769.28

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Solution

The fourth proportional to 13,274.24, 19,893.12 and 12,769.28 is: 19,136.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.24 : 19,893.12 = 12,769.28 : x
  2. Step 2: Convert to fraction form
    13,274.24/19,893.12 = 12,769.28/x
  3. Step 3: Cross multiply
    13,274.24x = 19,893.12 × 12,769.28
  4. Step 4: Simplify right side
    13,274.24x = 254,020,819.35
  5. Step 5: Solve for x
    x = 254,020,819.35/13,274.24
  6. Step 6: Final answer
    x = 19,136.37

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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.