Home / 18,606.08-27,911.68-5,459.36

Finding the Fourth Proportional to 18,606.08, 27,911.68 and 5,459.36

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Solution

The fourth proportional to 18,606.08, 27,911.68 and 5,459.36 is: 8,189.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,606.08 : 27,911.68 = 5,459.36 : x
  2. Step 2: Convert to fraction form
    18,606.08/27,911.68 = 5,459.36/x
  3. Step 3: Cross multiply
    18,606.08x = 27,911.68 × 5,459.36
  4. Step 4: Simplify right side
    18,606.08x = 152,379,909.32
  5. Step 5: Solve for x
    x = 152,379,909.32/18,606.08
  6. Step 6: Final answer
    x = 8,189.79

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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.