Home / 13,181.12-19,760.48-5,779.96

Finding the Fourth Proportional to 13,181.12, 19,760.48 and 5,779.96

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Solution

The fourth proportional to 13,181.12, 19,760.48 and 5,779.96 is: 8,665.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181.12 : 19,760.48 = 5,779.96 : x
  2. Step 2: Convert to fraction form
    13,181.12/19,760.48 = 5,779.96/x
  3. Step 3: Cross multiply
    13,181.12x = 19,760.48 × 5,779.96
  4. Step 4: Simplify right side
    13,181.12x = 114,214,783.98
  5. Step 5: Solve for x
    x = 114,214,783.98/13,181.12
  6. Step 6: Final answer
    x = 8,665.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.