Home / 13,011.05-19,519.92-3,651.10

Finding the Fourth Proportional to 13,011.05, 19,519.92 and 3,651.10

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Solution

The fourth proportional to 13,011.05, 19,519.92 and 3,651.10 is: 5,477.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,011.05 : 19,519.92 = 3,651.10 : x
  2. Step 2: Convert to fraction form
    13,011.05/19,519.92 = 3,651.10/x
  3. Step 3: Cross multiply
    13,011.05x = 19,519.92 × 3,651.10
  4. Step 4: Simplify right side
    13,011.05x = 71,269,131.11
  5. Step 5: Solve for x
    x = 71,269,131.11/13,011.05
  6. Step 6: Final answer
    x = 5,477.58

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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.