Home / 13,608.08-20,415.36-5,817.50

Finding the Fourth Proportional to 13,608.08, 20,415.36 and 5,817.50

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Solution

The fourth proportional to 13,608.08, 20,415.36 and 5,817.50 is: 8,727.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.08 : 20,415.36 = 5,817.50 : x
  2. Step 2: Convert to fraction form
    13,608.08/20,415.36 = 5,817.50/x
  3. Step 3: Cross multiply
    13,608.08x = 20,415.36 × 5,817.50
  4. Step 4: Simplify right side
    13,608.08x = 118,766,356.80
  5. Step 5: Solve for x
    x = 118,766,356.80/13,608.08
  6. Step 6: Final answer
    x = 8,727.64

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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.