Home / 13,011.39-19,518.41-3,651.44

Finding the Fourth Proportional to 13,011.39, 19,518.41 and 3,651.44

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Solution

The fourth proportional to 13,011.39, 19,518.41 and 3,651.44 is: 5,477.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,011.39 : 19,518.41 = 3,651.44 : x
  2. Step 2: Convert to fraction form
    13,011.39/19,518.41 = 3,651.44/x
  3. Step 3: Cross multiply
    13,011.39x = 19,518.41 × 3,651.44
  4. Step 4: Simplify right side
    13,011.39x = 71,270,187.16
  5. Step 5: Solve for x
    x = 71,270,187.16/13,011.39
  6. Step 6: Final answer
    x = 5,477.52

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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.