Home / 12,819.37-19,228.14-3,459.92

Finding the Fourth Proportional to 12,819.37, 19,228.14 and 3,459.92

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Solution

The fourth proportional to 12,819.37, 19,228.14 and 3,459.92 is: 5,189.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819.37 : 19,228.14 = 3,459.92 : x
  2. Step 2: Convert to fraction form
    12,819.37/19,228.14 = 3,459.92/x
  3. Step 3: Cross multiply
    12,819.37x = 19,228.14 × 3,459.92
  4. Step 4: Simplify right side
    12,819.37x = 66,527,813.56
  5. Step 5: Solve for x
    x = 66,527,813.56/12,819.37
  6. Step 6: Final answer
    x = 5,189.63

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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.