Home / 18,089.94-27,138.81-5,609.72

Finding the Fourth Proportional to 18,089.94, 27,138.81 and 5,609.72

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Solution

The fourth proportional to 18,089.94, 27,138.81 and 5,609.72 is: 8,415.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,089.94 : 27,138.81 = 5,609.72 : x
  2. Step 2: Convert to fraction form
    18,089.94/27,138.81 = 5,609.72/x
  3. Step 3: Cross multiply
    18,089.94x = 27,138.81 × 5,609.72
  4. Step 4: Simplify right side
    18,089.94x = 152,240,975.51
  5. Step 5: Solve for x
    x = 152,240,975.51/18,089.94
  6. Step 6: Final answer
    x = 8,415.78

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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.