Home / 11,805.97-16,292.29-6,500.78

Finding the Fourth Proportional to 11,805.97, 16,292.29 and 6,500.78

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Solution

The fourth proportional to 11,805.97, 16,292.29 and 6,500.78 is: 8,971.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,805.97 : 16,292.29 = 6,500.78 : x
  2. Step 2: Convert to fraction form
    11,805.97/16,292.29 = 6,500.78/x
  3. Step 3: Cross multiply
    11,805.97x = 16,292.29 × 6,500.78
  4. Step 4: Simplify right side
    11,805.97x = 105,912,592.99
  5. Step 5: Solve for x
    x = 105,912,592.99/11,805.97
  6. Step 6: Final answer
    x = 8,971.11

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1.5x scale

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.