Home / 12,685.32-19,027.92-3,451.32

Finding the Fourth Proportional to 12,685.32, 19,027.92 and 3,451.32

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Solution

The fourth proportional to 12,685.32, 19,027.92 and 3,451.32 is: 5,176.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,685.32 : 19,027.92 = 3,451.32 : x
  2. Step 2: Convert to fraction form
    12,685.32/19,027.92 = 3,451.32/x
  3. Step 3: Cross multiply
    12,685.32x = 19,027.92 × 3,451.32
  4. Step 4: Simplify right side
    12,685.32x = 65,671,440.85
  5. Step 5: Solve for x
    x = 65,671,440.85/12,685.32
  6. Step 6: Final answer
    x = 5,176.96

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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.