Home / 11,883.89-16,399.91-6,579.20

Finding the Fourth Proportional to 11,883.89, 16,399.91 and 6,579.20

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Solution

The fourth proportional to 11,883.89, 16,399.91 and 6,579.20 is: 9,079.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,883.89 : 16,399.91 = 6,579.20 : x
  2. Step 2: Convert to fraction form
    11,883.89/16,399.91 = 6,579.20/x
  3. Step 3: Cross multiply
    11,883.89x = 16,399.91 × 6,579.20
  4. Step 4: Simplify right side
    11,883.89x = 107,898,345.32
  5. Step 5: Solve for x
    x = 107,898,345.32/11,883.89
  6. Step 6: Final answer
    x = 9,079.38

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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.