Home / 18,399.36-27,588.76-10,905.96

Finding the Fourth Proportional to 18,399.36, 27,588.76 and 10,905.96

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Solution

The fourth proportional to 18,399.36, 27,588.76 and 10,905.96 is: 16,352.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,399.36 : 27,588.76 = 10,905.96 : x
  2. Step 2: Convert to fraction form
    18,399.36/27,588.76 = 10,905.96/x
  3. Step 3: Cross multiply
    18,399.36x = 27,588.76 × 10,905.96
  4. Step 4: Simplify right side
    18,399.36x = 300,881,913.01
  5. Step 5: Solve for x
    x = 300,881,913.01/18,399.36
  6. Step 6: Final answer
    x = 16,352.85

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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.