Home / 12,756.32-19,135.55-3,396.33

Finding the Fourth Proportional to 12,756.32, 19,135.55 and 3,396.33

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Solution

The fourth proportional to 12,756.32, 19,135.55 and 3,396.33 is: 5,094.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756.32 : 19,135.55 = 3,396.33 : x
  2. Step 2: Convert to fraction form
    12,756.32/19,135.55 = 3,396.33/x
  3. Step 3: Cross multiply
    12,756.32x = 19,135.55 × 3,396.33
  4. Step 4: Simplify right side
    12,756.32x = 64,990,651.02
  5. Step 5: Solve for x
    x = 64,990,651.02/12,756.32
  6. Step 6: Final answer
    x = 5,094.78

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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.