Home / 8,739.69-13,111.36-2,817.02

Finding the Fourth Proportional to 8,739.69, 13,111.36 and 2,817.02

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Solution

The fourth proportional to 8,739.69, 13,111.36 and 2,817.02 is: 4,226.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.69 : 13,111.36 = 2,817.02 : x
  2. Step 2: Convert to fraction form
    8,739.69/13,111.36 = 2,817.02/x
  3. Step 3: Cross multiply
    8,739.69x = 13,111.36 × 2,817.02
  4. Step 4: Simplify right side
    8,739.69x = 36,934,890.75
  5. Step 5: Solve for x
    x = 36,934,890.75/8,739.69
  6. Step 6: Final answer
    x = 4,226.11

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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.