Home / 11,694.40-16,139.72-6,659.88

Finding the Fourth Proportional to 11,694.40, 16,139.72 and 6,659.88

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Solution

The fourth proportional to 11,694.40, 16,139.72 and 6,659.88 is: 9,191.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,694.40 : 16,139.72 = 6,659.88 : x
  2. Step 2: Convert to fraction form
    11,694.40/16,139.72 = 6,659.88/x
  3. Step 3: Cross multiply
    11,694.40x = 16,139.72 × 6,659.88
  4. Step 4: Simplify right side
    11,694.40x = 107,488,598.43
  5. Step 5: Solve for x
    x = 107,488,598.43/11,694.40
  6. Step 6: Final answer
    x = 9,191.46

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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.