Home / 18,109.12-27,160.32-5,627.32

Finding the Fourth Proportional to 18,109.12, 27,160.32 and 5,627.32

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Solution

The fourth proportional to 18,109.12, 27,160.32 and 5,627.32 is: 8,439.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109.12 : 27,160.32 = 5,627.32 : x
  2. Step 2: Convert to fraction form
    18,109.12/27,160.32 = 5,627.32/x
  3. Step 3: Cross multiply
    18,109.12x = 27,160.32 × 5,627.32
  4. Step 4: Simplify right side
    18,109.12x = 152,839,811.94
  5. Step 5: Solve for x
    x = 152,839,811.94/18,109.12
  6. Step 6: Final answer
    x = 8,439.94

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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.