Home / 12,792.27-19,193.97-4,478.25

Finding the Fourth Proportional to 12,792.27, 19,193.97 and 4,478.25

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Solution

The fourth proportional to 12,792.27, 19,193.97 and 4,478.25 is: 6,719.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,792.27 : 19,193.97 = 4,478.25 : x
  2. Step 2: Convert to fraction form
    12,792.27/19,193.97 = 4,478.25/x
  3. Step 3: Cross multiply
    12,792.27x = 19,193.97 × 4,478.25
  4. Step 4: Simplify right side
    12,792.27x = 85,955,396.15
  5. Step 5: Solve for x
    x = 85,955,396.15/12,792.27
  6. Step 6: Final answer
    x = 6,719.32

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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.