Home / 18,378.96-27,564.30-5,231.04

Finding the Fourth Proportional to 18,378.96, 27,564.30 and 5,231.04

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Solution

The fourth proportional to 18,378.96, 27,564.30 and 5,231.04 is: 7,845.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.96 : 27,564.30 = 5,231.04 : x
  2. Step 2: Convert to fraction form
    18,378.96/27,564.30 = 5,231.04/x
  3. Step 3: Cross multiply
    18,378.96x = 27,564.30 × 5,231.04
  4. Step 4: Simplify right side
    18,378.96x = 144,189,955.87
  5. Step 5: Solve for x
    x = 144,189,955.87/18,378.96
  6. Step 6: Final answer
    x = 7,845.38

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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.