Home / 11,817.45-16,303.68-6,779.88

Finding the Fourth Proportional to 11,817.45, 16,303.68 and 6,779.88

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Solution

The fourth proportional to 11,817.45, 16,303.68 and 6,779.88 is: 9,353.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,817.45 : 16,303.68 = 6,779.88 : x
  2. Step 2: Convert to fraction form
    11,817.45/16,303.68 = 6,779.88/x
  3. Step 3: Cross multiply
    11,817.45x = 16,303.68 × 6,779.88
  4. Step 4: Simplify right side
    11,817.45x = 110,536,993.96
  5. Step 5: Solve for x
    x = 110,536,993.96/11,817.45
  6. Step 6: Final answer
    x = 9,353.71

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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.