Home / 13,779.43-20,666.00-3,916.26

Finding the Fourth Proportional to 13,779.43, 20,666.00 and 3,916.26

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Solution

The fourth proportional to 13,779.43, 20,666.00 and 3,916.26 is: 5,873.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779.43 : 20,666.00 = 3,916.26 : x
  2. Step 2: Convert to fraction form
    13,779.43/20,666.00 = 3,916.26/x
  3. Step 3: Cross multiply
    13,779.43x = 20,666.00 × 3,916.26
  4. Step 4: Simplify right side
    13,779.43x = 80,933,438.95
  5. Step 5: Solve for x
    x = 80,933,438.95/13,779.43
  6. Step 6: Final answer
    x = 5,873.50

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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.