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Finding the Fourth Proportional to 8,779.50, 13,169.79 and 2,623.50

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Solution

The fourth proportional to 8,779.50, 13,169.79 and 2,623.50 is: 3,935.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.50 : 13,169.79 = 2,623.50 : x
  2. Step 2: Convert to fraction form
    8,779.50/13,169.79 = 2,623.50/x
  3. Step 3: Cross multiply
    8,779.50x = 13,169.79 × 2,623.50
  4. Step 4: Simplify right side
    8,779.50x = 34,550,944.07
  5. Step 5: Solve for x
    x = 34,550,944.07/8,779.50
  6. Step 6: Final answer
    x = 3,935.41

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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.