Home / 11,112.49-16,668.20-2,792.32

Finding the Fourth Proportional to 11,112.49, 16,668.20 and 2,792.32

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Solution

The fourth proportional to 11,112.49, 16,668.20 and 2,792.32 is: 4,188.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,112.49 : 16,668.20 = 2,792.32 : x
  2. Step 2: Convert to fraction form
    11,112.49/16,668.20 = 2,792.32/x
  3. Step 3: Cross multiply
    11,112.49x = 16,668.20 × 2,792.32
  4. Step 4: Simplify right side
    11,112.49x = 46,542,948.22
  5. Step 5: Solve for x
    x = 46,542,948.22/11,112.49
  6. Step 6: Final answer
    x = 4,188.35

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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.