Home / 12,659.94-18,976.95-6,408.36

Finding the Fourth Proportional to 12,659.94, 18,976.95 and 6,408.36

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Solution

The fourth proportional to 12,659.94, 18,976.95 and 6,408.36 is: 9,605.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659.94 : 18,976.95 = 6,408.36 : x
  2. Step 2: Convert to fraction form
    12,659.94/18,976.95 = 6,408.36/x
  3. Step 3: Cross multiply
    12,659.94x = 18,976.95 × 6,408.36
  4. Step 4: Simplify right side
    12,659.94x = 121,611,127.30
  5. Step 5: Solve for x
    x = 121,611,127.30/12,659.94
  6. Step 6: Final answer
    x = 9,605.98

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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.