Home / 18,513.40-27,770.39-5,365.84

Finding the Fourth Proportional to 18,513.40, 27,770.39 and 5,365.84

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Solution

The fourth proportional to 18,513.40, 27,770.39 and 5,365.84 is: 8,048.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,513.40 : 27,770.39 = 5,365.84 : x
  2. Step 2: Convert to fraction form
    18,513.40/27,770.39 = 5,365.84/x
  3. Step 3: Cross multiply
    18,513.40x = 27,770.39 × 5,365.84
  4. Step 4: Simplify right side
    18,513.40x = 149,011,469.48
  5. Step 5: Solve for x
    x = 149,011,469.48/18,513.40
  6. Step 6: Final answer
    x = 8,048.84

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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.