Home / 18,055.20-27,079.68-4,905.84

Finding the Fourth Proportional to 18,055.20, 27,079.68 and 4,905.84

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Solution

The fourth proportional to 18,055.20, 27,079.68 and 4,905.84 is: 7,357.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,055.20 : 27,079.68 = 4,905.84 : x
  2. Step 2: Convert to fraction form
    18,055.20/27,079.68 = 4,905.84/x
  3. Step 3: Cross multiply
    18,055.20x = 27,079.68 × 4,905.84
  4. Step 4: Simplify right side
    18,055.20x = 132,848,577.33
  5. Step 5: Solve for x
    x = 132,848,577.33/18,055.20
  6. Step 6: Final answer
    x = 7,357.91

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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.