Home / 18,748.08-28,094.36-8,208.36

Finding the Fourth Proportional to 18,748.08, 28,094.36 and 8,208.36

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Solution

The fourth proportional to 18,748.08, 28,094.36 and 8,208.36 is: 12,300.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,748.08 : 28,094.36 = 8,208.36 : x
  2. Step 2: Convert to fraction form
    18,748.08/28,094.36 = 8,208.36/x
  3. Step 3: Cross multiply
    18,748.08x = 28,094.36 × 8,208.36
  4. Step 4: Simplify right side
    18,748.08x = 230,608,620.85
  5. Step 5: Solve for x
    x = 230,608,620.85/18,748.08
  6. Step 6: Final answer
    x = 12,300.39

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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.