Home / 12,643.74-18,967.52-4,092.34

Finding the Fourth Proportional to 12,643.74, 18,967.52 and 4,092.34

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Solution

The fourth proportional to 12,643.74, 18,967.52 and 4,092.34 is: 6,139.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,643.74 : 18,967.52 = 4,092.34 : x
  2. Step 2: Convert to fraction form
    12,643.74/18,967.52 = 4,092.34/x
  3. Step 3: Cross multiply
    12,643.74x = 18,967.52 × 4,092.34
  4. Step 4: Simplify right side
    12,643.74x = 77,621,540.80
  5. Step 5: Solve for x
    x = 77,621,540.80/12,643.74
  6. Step 6: Final answer
    x = 6,139.13

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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.