Home / 11,965.51-16,512.95-6,929.95

Finding the Fourth Proportional to 11,965.51, 16,512.95 and 6,929.95

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Solution

The fourth proportional to 11,965.51, 16,512.95 and 6,929.95 is: 9,563.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,965.51 : 16,512.95 = 6,929.95 : x
  2. Step 2: Convert to fraction form
    11,965.51/16,512.95 = 6,929.95/x
  3. Step 3: Cross multiply
    11,965.51x = 16,512.95 × 6,929.95
  4. Step 4: Simplify right side
    11,965.51x = 114,433,917.85
  5. Step 5: Solve for x
    x = 114,433,917.85/11,965.51
  6. Step 6: Final answer
    x = 9,563.65

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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.