Home / 18,513.11-27,770.28-5,365.60

Finding the Fourth Proportional to 18,513.11, 27,770.28 and 5,365.60

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Solution

The fourth proportional to 18,513.11, 27,770.28 and 5,365.60 is: 8,048.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,513.11 : 27,770.28 = 5,365.60 : x
  2. Step 2: Convert to fraction form
    18,513.11/27,770.28 = 5,365.60/x
  3. Step 3: Cross multiply
    18,513.11x = 27,770.28 × 5,365.60
  4. Step 4: Simplify right side
    18,513.11x = 149,004,144.94
  5. Step 5: Solve for x
    x = 149,004,144.94/18,513.11
  6. Step 6: Final answer
    x = 8,048.57

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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.