Home / 12,919.74-19,337.68-8,481.34

Finding the Fourth Proportional to 12,919.74, 19,337.68 and 8,481.34

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Solution

The fourth proportional to 12,919.74, 19,337.68 and 8,481.34 is: 12,694.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919.74 : 19,337.68 = 8,481.34 : x
  2. Step 2: Convert to fraction form
    12,919.74/19,337.68 = 8,481.34/x
  3. Step 3: Cross multiply
    12,919.74x = 19,337.68 × 8,481.34
  4. Step 4: Simplify right side
    12,919.74x = 164,009,438.89
  5. Step 5: Solve for x
    x = 164,009,438.89/12,919.74
  6. Step 6: Final answer
    x = 12,694.48

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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.