Home / 13,788.08-20,669.52-8,858.96

Finding the Fourth Proportional to 13,788.08, 20,669.52 and 8,858.96

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Solution

The fourth proportional to 13,788.08, 20,669.52 and 8,858.96 is: 13,280.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.08 : 20,669.52 = 8,858.96 : x
  2. Step 2: Convert to fraction form
    13,788.08/20,669.52 = 8,858.96/x
  3. Step 3: Cross multiply
    13,788.08x = 20,669.52 × 8,858.96
  4. Step 4: Simplify right side
    13,788.08x = 183,110,450.90
  5. Step 5: Solve for x
    x = 183,110,450.90/13,788.08
  6. Step 6: Final answer
    x = 13,280.34

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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.