Home / 11,956.40-16,499.81-6,651.09

Finding the Fourth Proportional to 11,956.40, 16,499.81 and 6,651.09

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Solution

The fourth proportional to 11,956.40, 16,499.81 and 6,651.09 is: 9,178.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,956.40 : 16,499.81 = 6,651.09 : x
  2. Step 2: Convert to fraction form
    11,956.40/16,499.81 = 6,651.09/x
  3. Step 3: Cross multiply
    11,956.40x = 16,499.81 × 6,651.09
  4. Step 4: Simplify right side
    11,956.40x = 109,741,688.04
  5. Step 5: Solve for x
    x = 109,741,688.04/11,956.40
  6. Step 6: Final answer
    x = 9,178.49

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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.