Home / 8,340.99-12,521.34-3,414.30

Finding the Fourth Proportional to 8,340.99, 12,521.34 and 3,414.30

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Solution

The fourth proportional to 8,340.99, 12,521.34 and 3,414.30 is: 5,125.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.99 : 12,521.34 = 3,414.30 : x
  2. Step 2: Convert to fraction form
    8,340.99/12,521.34 = 3,414.30/x
  3. Step 3: Cross multiply
    8,340.99x = 12,521.34 × 3,414.30
  4. Step 4: Simplify right side
    8,340.99x = 42,751,611.16
  5. Step 5: Solve for x
    x = 42,751,611.16/8,340.99
  6. Step 6: Final answer
    x = 5,125.48

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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.