Home / 18,365.10-27,463.46-13,688.36

Finding the Fourth Proportional to 18,365.10, 27,463.46 and 13,688.36

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Solution

The fourth proportional to 18,365.10, 27,463.46 and 13,688.36 is: 20,469.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,365.10 : 27,463.46 = 13,688.36 : x
  2. Step 2: Convert to fraction form
    18,365.10/27,463.46 = 13,688.36/x
  3. Step 3: Cross multiply
    18,365.10x = 27,463.46 × 13,688.36
  4. Step 4: Simplify right side
    18,365.10x = 375,929,624.55
  5. Step 5: Solve for x
    x = 375,929,624.55/18,365.10
  6. Step 6: Final answer
    x = 20,469.79

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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.