Home / 12,819.27-19,230.29-5,424.48

Finding the Fourth Proportional to 12,819.27, 19,230.29 and 5,424.48

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Solution

The fourth proportional to 12,819.27, 19,230.29 and 5,424.48 is: 8,137.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819.27 : 19,230.29 = 5,424.48 : x
  2. Step 2: Convert to fraction form
    12,819.27/19,230.29 = 5,424.48/x
  3. Step 3: Cross multiply
    12,819.27x = 19,230.29 × 5,424.48
  4. Step 4: Simplify right side
    12,819.27x = 104,314,296.38
  5. Step 5: Solve for x
    x = 104,314,296.38/12,819.27
  6. Step 6: Final answer
    x = 8,137.30

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1.5x scale

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.