Home / 11,668.85-16,108.43-6,887.21

Finding the Fourth Proportional to 11,668.85, 16,108.43 and 6,887.21

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Solution

The fourth proportional to 11,668.85, 16,108.43 and 6,887.21 is: 9,507.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,668.85 : 16,108.43 = 6,887.21 : x
  2. Step 2: Convert to fraction form
    11,668.85/16,108.43 = 6,887.21/x
  3. Step 3: Cross multiply
    11,668.85x = 16,108.43 × 6,887.21
  4. Step 4: Simplify right side
    11,668.85x = 110,942,146.02
  5. Step 5: Solve for x
    x = 110,942,146.02/11,668.85
  6. Step 6: Final answer
    x = 9,507.55

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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.