Home / 11,780.96-16,260.09-6,999.99

Finding the Fourth Proportional to 11,780.96, 16,260.09 and 6,999.99

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Solution

The fourth proportional to 11,780.96, 16,260.09 and 6,999.99 is: 9,661.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,780.96 : 16,260.09 = 6,999.99 : x
  2. Step 2: Convert to fraction form
    11,780.96/16,260.09 = 6,999.99/x
  3. Step 3: Cross multiply
    11,780.96x = 16,260.09 × 6,999.99
  4. Step 4: Simplify right side
    11,780.96x = 113,820,467.40
  5. Step 5: Solve for x
    x = 113,820,467.40/11,780.96
  6. Step 6: Final answer
    x = 9,661.39

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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.