Home / 11,956.18-16,499.28-6,650.68

Finding the Fourth Proportional to 11,956.18, 16,499.28 and 6,650.68

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Solution

The fourth proportional to 11,956.18, 16,499.28 and 6,650.68 is: 9,177.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,956.18 : 16,499.28 = 6,650.68 : x
  2. Step 2: Convert to fraction form
    11,956.18/16,499.28 = 6,650.68/x
  3. Step 3: Cross multiply
    11,956.18x = 16,499.28 × 6,650.68
  4. Step 4: Simplify right side
    11,956.18x = 109,731,431.51
  5. Step 5: Solve for x
    x = 109,731,431.51/11,956.18
  6. Step 6: Final answer
    x = 9,177.80

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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.