Home / 18,253.80-27,378.35-5,775.09

Finding the Fourth Proportional to 18,253.80, 27,378.35 and 5,775.09

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Solution

The fourth proportional to 18,253.80, 27,378.35 and 5,775.09 is: 8,661.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,253.80 : 27,378.35 = 5,775.09 : x
  2. Step 2: Convert to fraction form
    18,253.80/27,378.35 = 5,775.09/x
  3. Step 3: Cross multiply
    18,253.80x = 27,378.35 × 5,775.09
  4. Step 4: Simplify right side
    18,253.80x = 158,112,406.43
  5. Step 5: Solve for x
    x = 158,112,406.43/18,253.80
  6. Step 6: Final answer
    x = 8,661.89

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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.