Home / 12,743.98-19,101.62-6,486.43

Finding the Fourth Proportional to 12,743.98, 19,101.62 and 6,486.43

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Solution

The fourth proportional to 12,743.98, 19,101.62 and 6,486.43 is: 9,722.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,743.98 : 19,101.62 = 6,486.43 : x
  2. Step 2: Convert to fraction form
    12,743.98/19,101.62 = 6,486.43/x
  3. Step 3: Cross multiply
    12,743.98x = 19,101.62 × 6,486.43
  4. Step 4: Simplify right side
    12,743.98x = 123,901,325.29
  5. Step 5: Solve for x
    x = 123,901,325.29/12,743.98
  6. Step 6: Final answer
    x = 9,722.34

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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.