Home / 18,611.68-27,920.56-5,464.48

Finding the Fourth Proportional to 18,611.68, 27,920.56 and 5,464.48

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Solution

The fourth proportional to 18,611.68, 27,920.56 and 5,464.48 is: 8,197.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,611.68 : 27,920.56 = 5,464.48 : x
  2. Step 2: Convert to fraction form
    18,611.68/27,920.56 = 5,464.48/x
  3. Step 3: Cross multiply
    18,611.68x = 27,920.56 × 5,464.48
  4. Step 4: Simplify right side
    18,611.68x = 152,571,341.71
  5. Step 5: Solve for x
    x = 152,571,341.71/18,611.68
  6. Step 6: Final answer
    x = 8,197.61

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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.