Home / 12,792.50-19,179.48-5,392.90

Finding the Fourth Proportional to 12,792.50, 19,179.48 and 5,392.90

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Solution

The fourth proportional to 12,792.50, 19,179.48 and 5,392.90 is: 8,085.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,792.50 : 19,179.48 = 5,392.90 : x
  2. Step 2: Convert to fraction form
    12,792.50/19,179.48 = 5,392.90/x
  3. Step 3: Cross multiply
    12,792.50x = 19,179.48 × 5,392.90
  4. Step 4: Simplify right side
    12,792.50x = 103,432,954.01
  5. Step 5: Solve for x
    x = 103,432,954.01/12,792.50
  6. Step 6: Final answer
    x = 8,085.44

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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.