Home / 12,109.30-16,712.33-6,804

Finding the Fourth Proportional to 12,109.30, 16,712.33 and 6,804

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Solution

The fourth proportional to 12,109.30, 16,712.33 and 6,804 is: 9,390.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109.30 : 16,712.33 = 6,804 : x
  2. Step 2: Convert to fraction form
    12,109.30/16,712.33 = 6,804/x
  3. Step 3: Cross multiply
    12,109.30x = 16,712.33 × 6,804
  4. Step 4: Simplify right side
    12,109.30x = 113,710,659.30
  5. Step 5: Solve for x
    x = 113,710,659.30/12,109.30
  6. Step 6: Final answer
    x = 9,390.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.