Home / 18,189.69-27,291.20-7,662.35

Finding the Fourth Proportional to 18,189.69, 27,291.20 and 7,662.35

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Solution

The fourth proportional to 18,189.69, 27,291.20 and 7,662.35 is: 11,496.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,189.69 : 27,291.20 = 7,662.35 : x
  2. Step 2: Convert to fraction form
    18,189.69/27,291.20 = 7,662.35/x
  3. Step 3: Cross multiply
    18,189.69x = 27,291.20 × 7,662.35
  4. Step 4: Simplify right side
    18,189.69x = 209,114,551.55
  5. Step 5: Solve for x
    x = 209,114,551.55/18,189.69
  6. Step 6: Final answer
    x = 11,496.32

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1.5x scale

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.