Home / 12,984.40-19,486.68-5,198.32

Finding the Fourth Proportional to 12,984.40, 19,486.68 and 5,198.32

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Solution

The fourth proportional to 12,984.40, 19,486.68 and 5,198.32 is: 7,801.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,984.40 : 19,486.68 = 5,198.32 : x
  2. Step 2: Convert to fraction form
    12,984.40/19,486.68 = 5,198.32/x
  3. Step 3: Cross multiply
    12,984.40x = 19,486.68 × 5,198.32
  4. Step 4: Simplify right side
    12,984.40x = 101,297,998.38
  5. Step 5: Solve for x
    x = 101,297,998.38/12,984.40
  6. Step 6: Final answer
    x = 7,801.52

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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.