Home / 8,329.20-12,493.80-3,396.30

Finding the Fourth Proportional to 8,329.20, 12,493.80 and 3,396.30

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Solution

The fourth proportional to 8,329.20, 12,493.80 and 3,396.30 is: 5,094.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,329.20 : 12,493.80 = 3,396.30 : x
  2. Step 2: Convert to fraction form
    8,329.20/12,493.80 = 3,396.30/x
  3. Step 3: Cross multiply
    8,329.20x = 12,493.80 × 3,396.30
  4. Step 4: Simplify right side
    8,329.20x = 42,432,692.94
  5. Step 5: Solve for x
    x = 42,432,692.94/8,329.20
  6. Step 6: Final answer
    x = 5,094.45

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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.