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Finding the Fourth Proportional to 11,966.87, 16,514.05 and 6,661.64

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Solution

The fourth proportional to 11,966.87, 16,514.05 and 6,661.64 is: 9,192.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,966.87 : 16,514.05 = 6,661.64 : x
  2. Step 2: Convert to fraction form
    11,966.87/16,514.05 = 6,661.64/x
  3. Step 3: Cross multiply
    11,966.87x = 16,514.05 × 6,661.64
  4. Step 4: Simplify right side
    11,966.87x = 110,010,656.04
  5. Step 5: Solve for x
    x = 110,010,656.04/11,966.87
  6. Step 6: Final answer
    x = 9,192.93

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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.