Home / 12,742.44-19,107.42-3,977.32

Finding the Fourth Proportional to 12,742.44, 19,107.42 and 3,977.32

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Solution

The fourth proportional to 12,742.44, 19,107.42 and 3,977.32 is: 5,964.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,742.44 : 19,107.42 = 3,977.32 : x
  2. Step 2: Convert to fraction form
    12,742.44/19,107.42 = 3,977.32/x
  3. Step 3: Cross multiply
    12,742.44x = 19,107.42 × 3,977.32
  4. Step 4: Simplify right side
    12,742.44x = 75,996,323.71
  5. Step 5: Solve for x
    x = 75,996,323.71/12,742.44
  6. Step 6: Final answer
    x = 5,964.03

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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.