Home / 19,179.55-28,772.88-7,492.06

Finding the Fourth Proportional to 19,179.55, 28,772.88 and 7,492.06

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Solution

The fourth proportional to 19,179.55, 28,772.88 and 7,492.06 is: 11,239.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,179.55 : 28,772.88 = 7,492.06 : x
  2. Step 2: Convert to fraction form
    19,179.55/28,772.88 = 7,492.06/x
  3. Step 3: Cross multiply
    19,179.55x = 28,772.88 × 7,492.06
  4. Step 4: Simplify right side
    19,179.55x = 215,568,143.33
  5. Step 5: Solve for x
    x = 215,568,143.33/19,179.55
  6. Step 6: Final answer
    x = 11,239.48

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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.