Home / 13,011.53-19,518.44-3,651.64

Finding the Fourth Proportional to 13,011.53, 19,518.44 and 3,651.64

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Solution

The fourth proportional to 13,011.53, 19,518.44 and 3,651.64 is: 5,477.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,011.53 : 19,518.44 = 3,651.64 : x
  2. Step 2: Convert to fraction form
    13,011.53/19,518.44 = 3,651.64/x
  3. Step 3: Cross multiply
    13,011.53x = 19,518.44 × 3,651.64
  4. Step 4: Simplify right side
    13,011.53x = 71,274,249.19
  5. Step 5: Solve for x
    x = 71,274,249.19/13,011.53
  6. Step 6: Final answer
    x = 5,477.78

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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.